How Can Qualitative Methods Be Applied to Behavior Analytic Research: A Discussion and Suggestions for Implementation.

Behavior analysts in research and clinical practice are interested in an ever-expanding array of topics. They are compelled to explore the social validity of the interventions they propose and the findings they generate. As the field moves in these important directions, qualitative methods are becoming increasingly relevant. Representing a departure from small-n design favored by behavior analysts, qualitative approaches provide analysts a unique set of tools to answer questions that prioritize voice, experience, and understandings in context. Despite recognition of the value of qualitative approaches in other disciplines, application of qualitative methods in behavior analysis remains limited. One likely explanation is that behavior analysts are not yet fluent in applying qualitative approaches within their clinical and research investigations. To address this issue, exploration of qualitative research approaches in behavior analytic literature is needed, alongside practical advice for analysts who are interested in using qualitative methods. This article briefly outlines qualitative literature which pertains to behavior analysts wanting to incorporate qualitative methods into their inquiries. Attention is primarily drawn to the need for coherence in designing and implementing a robust qualitative study that aligns with the behavior analyst's aims and perspective on knowing. A set of guiding questions are provided to orient behavior analysts to considerations in qualitative research and outline how analysts can conceptualize a strong qualitative study. This article aims to support increased application of qualitative methods by behavior analysts, where these methods best address the function of the behavior analytic investigation.

Development and Preliminary Validation of the Patient Outcome Planning Calculator (POP-C): A Tool for Determining Treatment Dosage in Applied Behavior Analysis.

Board certified behavior analysts (BCBA) are responsible for determining the medically necessary treatment dosage for patients (i.e., the number of hours of therapy a patient should receive per week to optimize progress) during applied behavior analysis (ABA) therapy. However, because there is currently no standard method for making these determinations, BCBAs must rely on their own clinical judgment. Given that clinical judgment may be underdeveloped in some BCBAs, particularly those who are newly certified, more formal strategies are needed to guide decision making as it relates to medical necessity and treatment dosage. In this article we describe the development of the Patient Outcome Planning Calculator (POP-C), a standardized decision-making tool designed to assist novice practitioners in determining the medically necessary ABA treatment intensity and appropriate treatment setting for individuals with autism spectrum disorder (ASD). We present preliminary reliability data as well as construct validity data indicating statistically significant correlations between the POP-C and several norm-referenced and criterion-referenced assessments commonly used to estimate skill level and the corresponding degree of support needed within the ASD population to inform the ABA treatment model and goals. Supplementary Information: The online version contains supplementary material available at 10.1007/s40617-023-00861-6.

Teacher-assigned grades and external exams: sources of discrepancy.

Modest correlations between teacher-assigned grades and external assessments of academic achievement (r = .40-.60) have led many educational stakeholders to deem grades subjective and unreliable. However, theoretical and methodological challenges, such as construct misalignment, data unavailability and sample unrepresentativeness, limit the generalisability of previous findings. We overcome these challenges by exploiting rich, population-wide data from the National Registries in Norway (n = 511,858), where state regulations require close construct alignment between grades and external exams. Correlations between lower-secondary education final grades and external exam results (r = .64-.86) suggest that grades are better measures of academic achievement than previously acknowledged. Dominance analyses and multivariate regression analyses indicate that external exam results are the best predictor of grades in the same subject. However, our results also indicate that state regulations and quality assurance systems cannot completely eradicate potential sources of discrepancy.

Italian normative data for the Unhelpful Thoughts and Beliefs about Stuttering (UTBAS) Scales for adults who stutter.

PURPOSE: This study aimed to assess the reliability and validity of the Italian translation of the Unhelpful Thoughts and Beliefs about Stuttering (UTBAS) scales for adults who stutter, as there are no assessment tools currently available in Italy. The UTBAS scales provide a comprehensive stuttering-specific measure of the unhelpful thoughts and beliefs that can be used to screen for indicators of social anxiety in adults who stutter. Additionally, the UTBAS scales also allow the identification of negative thoughts and beliefs that negatively impact speech treatment outcomes. METHOD: The translation of the UTBAS scales into Italian (UTBAS-ITA) was completed using the forward-backward translation process and it was administered to 98 adults who stutter (AWS) and 98 adults who do not stutter (AWNS). Both groups were matched for gender and age. We also administered the UTBAS-ITA to 76 AWS a second time within a two-week interval to assess test-retest reliability. Additionally, we administered the State-Trait Anxiety Inventory and the Fear of Negative Evaluation Scale to 20 AWS to assess concurrent validity. RESULTS: The UTBAS-ITA showed good power of discrimination between AWS and AWNS, high internal validity, high internal consistency, good construct validity, and good test-retest reliability. CONCLUSION: Since there is a scarcity of clinical assessment tools for adults who stutter in Italy, the UTBAS-ITA could serve as an assessment tool and outcome measure for clinical and research environments.

The psychometric properties of the Turkish version of the parents' perception of satisfaction with care from pediatric nurse practitioners instrument.

AIM: This study was carried out to adapt a measurement tool that can be used to measure the perceived satisfaction level of parents of pediatric patients hospitalized in a pediatric clinic with care from pediatric nurses and to examine its psychometric properties. DESIGN AND METHOD: The study was conducted methodologically with 301 parents of children who were hospitalized in the pediatric clinic of a university hospital between September and December 2023. Explanatory and confirmatory factor analyses were performed on the data to establish the validity of the scale, Cronbach's alpha reliability coefficient, split-half, item-total score methods were utilized to test its reliability. RESULTS: The scale consisted of 26 items and a single dimension. It was determined that the total explained variance ratio was 79.246%. According to the confirmatory factor analysis results, goodness of fit values were determined as RMSEA = 0.077, CFI = 0.96, IFI = 0.97, RFI = 0.92, NFI = 0.93, and TLI = 0.96. Cronbach's alpha coefficient was calculated as α = 0.989 for the total scale. CONCLUSION: The Parents' Perception of Satisfaction with Care from Pediatric Nurse Practitioners Instrument is a valid and reliable measurement tool that can be used to measure the perceived satisfaction level of parents of pediatric patients hospitalized in a pediatric clinic with nursing care. IMPLICATIONS FOR PRACTICE: The scale can contribute to determining the perceived satisfaction levels of parents of pediatric patients hospitalized in the pediatric clinic with nursing care and, if there is a problem, to providing regular in-service training for pediatric nurses who are responsible for pediatric patient safety and quality of care.

Cross-cultural adaptation, reliability, and validity of the Persian version of the overactive bladder questionnaire (OAB-V8).

Background and objectives: Overactive bladder (OAB) is characterized by urinary frequency and is recognized as a disorder. Various tools are available for diagnosing this condition. This study aimed to evaluate the reliability and validity of the Persian version of the 8-item Overactive Bladder Scale (OAB-V8). Methods: This analytical cross-sectional study was conducted on a sample of 150 OAB patients. The OAB-V8 scale was translated and culturally adapted following established guidelines. Face and content validity were assessed using the Impact Score (IS), Content Validity Index (CVI), and Content Validity Ratio (CVR) indices. Reliability was evaluated by calculating Cronbach's alpha (α) and utilizing the test-retest method (Intra-class correlation coefficients (ICC)). Construct validity was explored through exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). All statistical analyses were carried out using SPSS version 24 and AMOS version 24, with a significance level set at 5 %. Results: The face validity was confirmed, with all items having an IS value greater than 1.5. Content validity was also confirmed, as most items had a Content Validity Index (CVI) higher than 0.79, and the average Content Validity Ratio (CVR) value was 0.96. In the initial phase of Exploratory Factor Analysis (EFA), the sample adequacy and suitability of the exploratory analysis were confirmed (Kaiser-Meyer-Olkin (KMO) test value = 0.784, Bartlett's Test p-value <0.05). Two dimensions explaining 61.87 % of the variance were then extracted. In the Confirmatory Factor Analysis (CFA), the fit indices were deemed acceptable (χ^2/df = 2.006, CFI = 0.96, GFI = 0.95, AGFI = 0.89, TLI = 0.93, RMSEA = 0.08). The reliability was confirmed with an alpha coefficient of 0.81 and an Intraclass Correlation Coefficient (ICC) of 0.98. Conclusion: The Persian version of the OAB-V8 questionnaire demonstrated good validity and reliability, indicating its suitability for use in Persian-speaking countries.

Circadian variations influence anxiety-related behaviour, olfaction, and hedonic response in male Sprague-Dawley rats.

INTRODUCTION: Despite the acknowledged impact of circadian rhythms on various aspects of life, behavioural tests with laboratory animals often overlook alignment with their natural activity patterns. This study aims to evaluate the influence of circadian variations on the results, validity, and reliability of different behavioural tests in rats. METHODS: Three behavioural tests, the Light-Dark Box Test (LDB), assessing anxiety-related behaviour and locomotor activity; the Buried Pellet Test (BPT), revealing olfactory abilities and motivation issues; and the Sucrose Preference Test (SPT), studying the anhedonic response, were employed to encompass multiple daytime-dependent behavioural aspects in male Sprague-Dawley rats. RESULTS: Our findings underscore distinct circadian effects on locomotor activity, exploratory behaviour, olfactory acuity, motivation, and hedonic response. Notably, anxious behaviour remained unaffected by daytime conditions. Furthermore, decreased data variance was found to be correlated with conducting behavioural tests during the subjects' active phase. DISCUSSION: This study demonstrates extensive circadian influences on nearly all parameters investigated, coupled with a significant reduction in data variability during the active phase. Emphasising the importance of aligning experimental timing with rats' natural activity patterns, our results suggest that conducting tests during the active phase of the animals not only refines test sensitivity , reduces stress, and provides more representative data, but also contributes to ethical animal research (3 R) and improves test relevance. This, in turn, enhances the reliability and validity of experimental outcomes in behavioural research and promotes animal welfare.

Positive predictive value and sensitivity of cancer-associated venous thromboembolism diagnoses in the Danish National Patient Register.

INTRODUCTION: Hospital discharge diagnoses from administrative registries are frequently used in studies of cancer-associated venous thromboembolism, but the validity of International Classification of Diseases (ICD) codes for identifying such events is unknown. MATERIALS AND METHODS: Using patient samples from the Danish National Patient Register, we calculated positive predictive values (PPV), i.e., the proportion of registered ICD codes, which could be confirmed after manual search of the electronic health record. Sensitivity was estimated in a sample of patients with imaging-verified venous thromboembolism but without prior knowledge about their ICD coding status. Sensitivity was calculated as the proportion of these patients, who were discharged with an ICD code for venous thromboembolism. RESULTS: The overall PPV of an ICD-10 diagnosis of cancer-associated venous thromboembolism was 75.9 % (95 % confidence interval 71.3-80.0). In subgroups, the PPV was particularly low for recurrent venous thromboembolism (44.2 %), diagnoses in a secondary position (55.7 %), outpatient diagnoses (65.3 %), and diagnoses given at surgical (66.7 %), emergency wards (48.4 %), or via hospices/palliative teams (0 %). The overall sensitivity was 68 %, meaning 32 % of patients with cancer diagnosed in hospital with venous thromboembolism were discharged without any registered ICD code for venous thromboembolism. CONCLUSIONS: The positive predictive value of an ICD diagnosis of cancer-associated venous thromboembolism in the Danish Patient Register was overall adequate for research purposes, but with notable variation across subgroups. Sensitivity was limited, as 1/3 of patients with venous thromboembolism were discharged without any relevant ICD code. Cautious interpretation of incidence of cancer-associated venous thromboembolism based on administrative register-based data is warranted.

Methodological quality of 100 recent systematic reviews of health-related outcome measurement instruments: an overview of reviews.

PURPOSE: Systematic reviews evaluating and comparing the measurement properties of outcome measurement instruments (OMIs) play an important role in OMI selection. Earlier overviews of review quality (2007, 2014) evidenced substantial concerns with regards to alignment to scientific standards. This overview aimed to investigate whether the quality of recent systematic reviews of OMIs lives up to the current scientific standards. METHODS: One hundred systematic reviews of OMIs published from June 1, 2021 onwards were randomly selected through a systematic literature search performed on March 17, 2022 in MEDLINE and EMBASE. The quality of systematic reviews was appraised by two independent reviewers. An updated data extraction form was informed by the earlier studies, and results were compared to these earlier studies' findings. RESULTS: A quarter of the reviews had an unclear research question or aim, and in 22% of the reviews the search strategy did not match the aim. Half of the reviews had an incomprehensive search strategy, because relevant search terms were not included. In 63% of the reviews (compared to 41% in 2014 and 30% in 2007) a risk of bias assessment was conducted. In 73% of the reviews (some) measurement properties were evaluated (58% in 2014 and 55% in 2007). In 60% of the reviews the data were (partly) synthesized (42% in 2014 and 7% in 2007); evaluation of measurement properties and data syntheses was not conducted separately for subscales in the majority. Certainty assessments of the quality of the total body of evidence were conducted in only 33% of reviews (not assessed in 2014 and 2007). The majority (58%) did not make any recommendations on which OMI (not) to use. CONCLUSION: Despite clear improvements in risk of bias assessments, measurement property evaluation and data synthesis, specifying the research question, conducting the search strategy and performing a certainty assessment remain poor. To ensure that systematic reviews of OMIs meet current scientific standards, more consistent conduct and reporting of systematic reviews of OMIs is needed.

Clinical practices in Swedish speech-language pathology for children with (developmental) language disorder.

In Sweden, treatment for children with (developmental) language disorder ((D)LD) is traditionally carried out at a speech-language pathology (SLP) clinic, and based on formal language tests, which may not entirely represent the child's everyday language and communication skills. SLP services that include video recordings have shown positive outcomes in terms of providing information about children's linguistic and communicative abilities in everyday life, but little is known about the use of video in clinical practice. The aim of this study is therefore to investigate how Swedish SLPs link their clinical practices (assessment, treatment, and evaluation of treatment outcome) to the everyday language and communication abilities of children with (D)LD. A further aim is to explore SLPs' utilisation of video recordings as a part of their clinical practices with the target group. A web-based questionnaire was distributed to SLPs in Sweden, who work with children with (D)LD. Results demonstrate that Swedish SLPs perceive that their intervention is in alignment with children's everyday language and communication needs to a fairly high degree. However, an exception is assessment, which is considered to have a weaker alignment with children's everyday communication abilities. The use of video recordings for clinical purposes is very limited. It is suggested here that incorporating video recordings from children's everyday life would be an easy and time-efficient way to strengthen the ecological validity of SLP practices for children with (D)LD.

Validating the Ontario Child Health Study Emotional Behavioural Scales-Brief Version (OCHS-EBS-B) in children with chronic physical illness.

BACKGROUND: A substantial proportion of children have a physical illness; these children commonly experience physical-mental comorbidity. To assess child mental health, brief scales that can be used in clinical and research settings are needed. This study assessed the validity and reliability of parent-reported Ontario Child Health Study Emotional Behavioural Scale-Brief Version (OCHS-EBS-B) scores. METHODS: Data come from a longitudinal study of children aged 2-16 years with a physical illness recruited from outpatient clinics at a pediatric hospital. Confirmatory factor analysis and McDonald's coefficient assessed the factor structure and internal consistency reliability of the OCHS-EBS-B, respectively. Point biserial correlations assessed agreement between the OCHS-EBS-B and Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID), a structured diagnostic interview. The Wilcoxon rank sum test compared OCHS-EBS-B scores between children with versus without physical-mental comorbidity (known-group validity). RESULTS: The three-factor structure of the OCHS-EBS-B was replicated in this sample of children with physical illness (χ2 = 196.23(272), p < 0.001; CFI = 0.98; TLI = 0.98; SRMR = 0.06; RMSEA [90% CI] = 0.034 [0.027, 0.044]). It had excellent internal consistency reliability (ω = 0.86-0.92) and was moderately correlated with the MINI-KID (baseline: rpb = 0.43-0.51; 6 months: rpb = 0.55-0.65). OCHS-EBS-B scores were significantly higher among children with versus without physical-mental comorbidity. CONCLUSIONS: Findings confirm psychometric evidence that the OCHS-EBS-B is a valid and reliable measure of mental health in children with chronic physical illness. Its brevity and robust psychometric properties make the OCHS-EBS-B a strong candidate for routine use in integrated pediatric physical and mental health services.

Reliability and validity study of the Chinese version of the Cerebellar Cognitive Affective Syndrome Scale in patients with cerebellar injury.

PURPOSE: To preliminarily investigate the reliability and validity of the Chinese version of the Cerebellar Cognitive Affective Syndrome Scale (CCAS scale) in the cerebellar injury population. METHODS: In this study, 40 patients with cerebellar injury and 39 normal individuals hospitalized in a stroke center were assessed using the Chinese version of the CCAS scale A, MMSE, and PHQ2, and the results were analyzed using content validity, structural validity, internal consistency, inter- rater agreement, and test-retest reliability. RESULTS: The correlation coefficients of semantic fluency, phonemic fluency, category switching, digit span forward, digit span backward, cube, verbal recall, similarities and Go No-Go subscores in the Chinese version of the CCAS scale A were 0.586-0.831 (P ≤ 0.05) with the total score, but there was no significant correlation between the affect and the total score (P = 0.110). The total cognitive score of the Chinese version of the CCAS scale A was correlated with the (r = 0.807, P ≤ 0.01), and the total score of the Chinese version of the CCAS scale A affect was correlated with the total score of PHQ2 (r = 0.884, P ≤ 0.01). The 2 factors were extracted using principal component analysis, and the cumulative variance contribution rate was 59.633%. The factor loadings of each of the corresponding factors were > 0.5, indicating good structural validity of the Chinese version of the CCAS scale A. Cronbach α = 0.827 indicated good internal consistency, and inter-rater reliability (ICC > 0.95) and test-retest reliability (ICC = 0.717-0.895)indicated that the Chinese version of the CCAS scale A had good inter-rater reliability and test-retest reliability. CONCLUSION: The Chinese version of the CCAS scale A has good reliability and validity in the cerebellar injury population and is useful for screening cerebellar cognitive-emotional syndrome.

Validating the AI-assisted second language (L2) learning attitude scale for Chinese college students and its correlation with L2 proficiency.

The positive impact of Artificial Intelligence (AI) on second language (L2) learning is well-documented. An individual's attitude toward AI significantly influences its adoption. Despite this, no specific scale has been designed to measure this attitude, particularly in the Chinese context. To address this gap, our study aims to construct the AI-Assisted L2 Learning Attitude Scale for Chinese College Students (AL2AS-CCS) and evaluate its reliability, validity, and relationship with L2 proficiency. Our research comprises two phases, each involving separate samples. In Phase One (Sample 1: n = 379), we conducted exploratory factor analysis (EFA) to determine the factor structure of the AL2AS-CCS. The resulting two-factor structure consists of 12 items, categorized into cognitive and behavioral components. In Phase Two (Sample 2: n = 429), we performed confirmatory factor analysis (CFA) to validate the factor structure and assess model fit. CFA in Sample 2 confirmed the factor structure and demonstrated a good model fit. Additionally, the AL2AS-CCS exhibited high criterion validity, internal consistency, and cross-gender invariance. Our findings suggest that the AL2AS-CCS is a valid measurement tool for assessing Chinese college students' attitude toward AI-assisted L2 learning. Moreover, Chinese college students were discovered to maintain a moderately positive attitude toward AI-assisted L2 learning. Additionally, a positive correlation was identified between this attitude and their L2 proficiency.

Cross-Cultural Adaptation and Psychometric Validation of the Quality of Life Index Among Hausa-Speaking People with Spinal Cord Injury in Northwest Nigeria.

Background: Quality of life (QoL) is an important outcome that is used to measure the success of healthcare interventions. Valid and reliable instruments are required to assess QoL. Hence, we conducted this study to adapt and validate the QoL Index (QLI) among Hausa-speaking people with spinal cord injury (SCI) in northwest Nigeria. Method: Using the International Society for Pharmacoeconomic and Outcome Research principles of good practice and the consensus-based standards for the selection of health measurement instruments guidelines, the QLI-SCI version was translated into Hausa language and tested for content validity, internal consistency, and test-retest reliability among people with SCI in northwest Nigeria. Result: The Hausa QLI (HQLI) demonstrated good content validity (CVI = 92.18%), internal consistency (Cronbach's alpha = 0.855), and test-retest reliability (ICC =0.949 [95% CI, 0.916-0.969]). Conclusion: The HQLI can be deployed to assess QoL among Hausa-speaking people with SCI, thus promoting robust measurement of QoL in an SCI population.

Analyzing the Psychometric Properties of Infant (0-24 Months) Developmental Assessments: A Scoping Review.

PURPOSE: To assess the psychometric properties of available developmental assessments for infants, aged 0-24 months. METHODS: A scoping review was conducted using the PRISMA Extension for Scoping Reviews as a guideline. The following four databases: Medline, CINAHL, Embase, and Web of Science were used to retrieve articles. Assessments were analyzed for psychometric properties of reliability and validity. Results: Fifteen developmental assessments were identified and evaluated based on their psychometric properties from 20 number of articles. RESULTS: Three assessments including Bayley Scales of Infant and Toddler Development 3rd Edition (BSID-III), Caregiver Reported Early Development Instruments (CREDI), and Ages and Stages Questionnaire 3rd Edition (ASQ-3), were identified to have the most supporting evidence. CONCLUSION: This study provided clinicians with an updated list of all-encompassing infant developmental assessments. Certain assessments require additional evidence regarding their psychometric properties to substantiate their clinical utility.

Londrina Activities of Daily Living Protocol: validity, reliability, minimal detectable change, and standard error of measurement in adults with asthma.

INTRODUCTION: Asthma symptoms are dyspnea, chronic cough, wheezing, chest tightness, or chest discomfort, which can directly limit the activities of daily living (ADL), which is frequently reported by adults with asthma. Evaluating ADL with a reliable protocol with usual speed is necessary. OBJECTIVES: To investigate the validity, reliability, minimal detectable change (MDC), and standard error of measurement (SEM) of the Londrina ADL Protocol (LAP) for adults with asthma. METHODS: Adults with asthma were evaluated with the LAP test. Spearman's correlation coefficient was used to verify validity with the 6-minute walk test (6MWT), Glittre-ADL test, and London Chest Activity of Daily Living (LCADL). To test the reliability, the test was reapplied in at least 30 minutes; the Wilcoxon test and Intraclass Correlation Coefficient (ICC), SEM, MDC, and learning effect were performed. RESULTS: Fifty-three individuals were included (26% men, 43 ± 15 years, BMI 28 ± 8kg/m2, FEV1 70 ± 24%predicted). For convergent validity, the LAP test was correlated with the 6MWT, Glittre-ADL, and LCADL scale (r=-0.49, 0.71, and 0.30, respectively; p < 0.03). There was a difference in test-retest (p < 0.0001) and reliability analysis shows ICC3 of 0.94, SEM of 14.88 seconds (22%), and MDC of 41.23 seconds (15%). Furthermore, the individuals performed the second test with -23 ± 19 (7.9%) seconds. CONCLUSION: The LAP test is valid and reliable for assessing limitations during ADL in adults with asthma. Considerable learning effect was observed, therefore, the best of two measures may avoid underestimation.

Reliability and Validity of a Tablet-Based Neuropsychological Test (the Hellocog) for Screening Dementia.

OBJECTIVE: To address the gap in timely diagnosis of dementia due to limited screening tools, we investigated the validity and reliability of the Hellocog, computerized neuropsychological test based on tablets for screening dementia. The higher the probability score on the Hellocog, the higher the likelihood of dementia. METHODS: This study included 100 patients with dementia and 100 individuals with normal cognition who were aged 60 years or older and free of other major psychiatric, neurological, or medical conditions. They administered the Hellocog on a tablet under the supervision of a neuropsychologist. To determine test-retest reliability, 20 took the Hellocog again after 4 weeks. Diagnostic performance was assessed using the receiver operator characteristics (ROC) analysis. RESULTS: The Hellocog showed adequate internal consistency (Cronbach's alpha=0.69) and good test-retest reliability (intraclass correlation coefficient=0.86, p<0.001). Participants with dementia scored higher on the Hellocog than those with normal cognition (p<0.001), confirming its high criterion validity. Strong correlations with the Mini-Mental Status Examination (MMSE) score and the total score of the Consortium to Establish a Registry for Alzheimer's Disease Neuropsychological Assessment Battery (CERAD-TS) highlight the concurrent validity of the Hellocog. The area under the ROC curve for dementia of the Hellocog was excellent (0.971) and comparable to that of the MMSE and CERAD-TS. The sensitivity and specificity for dementia were 0.945 and 0.872%, respectively, which were slightly better than those of the MMSE and CERAD-TS. CONCLUSION: Hellocog stands out as a valid and reliable tool for self-administered dementia screening, with promise for improving early detection of dementia.

Development of a brief core set for knee dysfunction based on the International Classification of Functioning, Disability and Health: assessing construct validity and measurement potential.

BACKGROUND: The comprehensive core set for knee dysfunction was developed to classify the functioning of people with any knee dysfunction. To be used as a clinical instrument to measure the functioning of people with knee dysfunction, the construct validity of the core set still needs to be assessed. The purpose of this study was to analyze the construct validity of the comprehensive core set for knee dysfunction as an instrument to measure functioning. METHODS: A cross-sectional study with 200 participants with knee dysfunction with or without clinical diagnosis of knee pathology, with or without complaint of pain, with or without instability, and/or with or without knee movement restriction of any type. Participants were assessed using the comprehensive core set for knee dysfunction with 25 categories, the subjective form from the International Knee Documentation Committee scale, and measures of self-perceived general health and functioning. The construct validity of the core set was assessed by Rasch analysis, and the external construct validity was assessed by correlation between the score of the brief core set for knee dysfunction with the subjective form from the International Knee Documentation Committee scale, and scores of self-perception of health and functioning. RESULTS: Twelve categories were consistent with a unidimensional construct, with no difference in the response pattern for age, sex, educational level, and time of complaint. These categories were included in the brief core set for knee dysfunction. The mean score of the brief core set was 37 ± 21 points, a value classified as moderate impairment regarding functioning. Correlations with the subjective form from the International Knee Documentation Committee scale and scores of self-perception were adequate (p < 0.01; r > 0.5). CONCLUSION: The brief core set for knee dysfunction, a set with 12 categories, can be used as a clinical instrument to measure and score the functioning of people with knee dysfunction, aged between 18 and 89 years, with adequate construct validity.

A study of the reliability and construct validity of the 1-minute sit-to-stand test for individuals with systemic sclerosis.

OBJECTIVE: This study seeks to assess the reliability and construct validity of the 1-minute sit-to-stand test as an efficient tool for evaluating the functional capacity of individuals with systemic sclerosis, considering its time and space effectiveness. METHODS: This cross-sectional study recruited forty-nine individuals with systemic sclerosis from a university hospital in Denmark. The 1-minute sit-to-stand test was conducted twice on the same day, with an interval of approximately 10 to 15 minutes between administrations, followed by a single administration of the 6-minute walk test. Reliability and validity were estimated using Bland-Altman statistics, intraclass correlation coefficient (ICC2,1), paired t-test, and Spearman's rank correlation coefficient (ρ). RESULTS: The 1-minute sit-to-stand test exhibited excellent test-retest reliability with an ICC2,1 (CI) of 0.97 (0.95-0.99). The minimal metrically detectable change between separate measures on a subject for the difference in the measures to be considered real at the 95% confidence level was 2.9 repetitions and 11%, respectively. A learning effect of one repetition was observed between repeated measures. High construct validity was observed between the 1-minute sit-to-stand and 6-minute walk test (ρ = 0.78, p < .001). CONCLUSIONS: This study demonstrates the 1-minute sit-to-stand test as highly reliable, with an 11% change indicating a true outcome change. It also demonstrates robust construct validity compared to the 6-minute walk test. The 1-minute sit-to-stand test appears feasible for assessing functional capacity in well-functioning individuals with systemic sclerosis, but prior familiarization with the task is recommended, as a small learning effect was observed with one repetition.

Swedish speech and language pathologists reflect on how their clinical practises align to everyday language and communication skills of children with developmental language disorder.

This study aims to extend current knowledge about the possibilities and challenges encountered by Swedish speech and language pathologists (SLPs) in targeting everyday language and communication in children with developmental language disorder (DLD). To explore this matter, unstructured focus groups were conducted where 15 SLPs, working with children with DLD, shared their views on the alignment between their clinical practices and children's everyday lives. Thematic analysis was used to analyse the data, which resulted in five themes: It's everyday life that matters; As an SLP, you're not a part of the child's everyday life; How do we merge the different worlds?; Resources at home vary, and The employer sets the framework for clinical practices. The SLPs stressed the importance of targeting everyday skills and needs, but they experienced themselves as being detached from the children's daily context. Collaboration with caregivers and (pre)school staff was emphasised; however, the resources and capacity of the caregivers and staff varied, and this was experienced as a challenge for providing the most appropriate care. Some children and their families were situated in a multifaceted context and needed more extensive care, and this group was described as increasing. However, the services that the SLPs were able to offer varied and were largely regulated by organisational constraints. Individualised services are crucial for ensuring a positive development for children with DLD and for empowering caregivers to be effective collaborative partners in intervention. Therefore, it is essential for SLPs to have the time and resources to ensure high-quality care.