Dimensionality and reliability of USM pre-clinical medical students' guidance and counselling needs questionnaire.

OBJECTIVE: There is no standard mechanism for empathy guidance and counselling for medical students. This study aimed to determine the dimensionality and reliability of a questionnaire developed for establishing guidance and counselling for pre-clinical medical students at Universiti Sains Malaysia (USM). METHODS: A cross-sectional study was conducted among undergraduate medical students of the School of Medical Sciences of USM. The proposed USM Medical Students' Guidance and Counselling Needs (USM-MSGCN) questionnaire is a self-administered instrument that consists of 68 initial items developed from the recommendation of medical students, counsellors, and lecturers in the medical education department. To determine the dimensionality (construct validity) and reliability of the questionnaire, exploratory factor analysis and Cronbach's alpha internal consistency reliability analysis were conducted. RESULTS: A total of 208 students participated in the study. Factor analysis revealed that the items were not unidimensional; four potential constructs could be extracted from the questionnaire, namely, self-leadership (7 items), communication (5 items), learning (5 items), and psychological coping skills (3 items), with factor loading ranges of 0.56-0.82, 0.56-0.88, 0.65-0.84, and 0.79-0.80, respectively. These domains had the following internal consistency reliability (Cronbach's alpha): 0.89, 0.90, 0.87, and 0.87, respectively; the overall alpha value was 0.93. CONCLUSION: Four factors, with 20 items in the USM-MSGCN questionnaire had good validity and reliability values when administered among the pre-clinical medical students.

Probiotic Lactobacillus plantarum P8 alleviated stress and anxiety while enhancing memory and cognition in stressed adults: A randomised, double-blind, placebo-controlled study.

BACKGROUND & AIMS: To investigate the effects of probiotic in alleviation of stress in stressed adults, along our focus to identify and justify strain specificity on selected health benefits with a precisely targeted population. METHODS: This 12-weeks randomized, double-blind and placebo-controlled study investigated the effects of a probiotic (Lactobacillus plantarum P8; 10 log CFU daily) on psychological, memory and cognition parameters in one hundred and three (P8 n = 52, placebo n = 51) stressed adults with mean age of 31.7 ± 11.1 years old. All subjects fulfilled the criteria of moderate stress upon diagnosis using the PSS-10 questionnaire. RESULTS: At the end of study, subjects on P8 showed reduced scores of stress (mean difference 2.94; 95% CI 0.08 to 5.73; P = 0.048), anxiety (mean difference 2.82; 95% CI 0.35 to 5.30; P = 0.031) and total score (mean difference 8.04; 95% CI 0.73 to 15.30; P = 0.041) as compared to placebo after 4-weeks, as assessed by the DASS-42 questionnaire. Although plasma cortisol levels were only marginally different between placebo and P8 (mean difference 3.28 ug/dl; 95% CI -7.09 to 0.52; P = 0.090), pro-inflammatory cytokines such as IFN-γ (mean difference 8.07 pg/ml; 95% CI -11.2 to -4.93; P < 0.001) and TNF-α (mean difference 1.52 pg/ml; 95% CI -2.14 to -0.89; P < 0.001) showed higher reduction as compared to placebo over 12-weeks. These were accompanied by enhanced memory and cognitive traits such as social emotional cognition and verbal learning and memory upon administration of P8 as compared to the placebo, with different effects in women as compared to men. CONCLUSIONS: The present data illustrated that L. plantarum P8 is a feasible and natural intervention for the alleviation of selected stress, anxiety, memory and cognitive symptoms in stressed adults. TRIAL REGISTRATION: Approved by the JEPeM-USM Review Panel on Clinical Studies (Approval number USM/JEPeM/16050195) and was registered at ClinicalTrials.gov (identifier number NCT03268447).

Psychometric properties of the mentor behaviour scale in a sample of Malaysian medical students.

OBJECTIVES: To determine the psychometric properties of the Mentor Behaviour Scale (MBS), a 15-item inventory that evaluates four supportive mentor behaviours in terms of construct validity and internal consistency. METHOD: A cross-sectional study was carried out on a sample of medical students in their final year at Universiti Sains Malaysia. Confirmatory factor analysis (CFA) was performed using AMOS 22 to assess construct validity. Reliability analysis was performed using SPSS 22 to assess internal consistency. RESULTS: A total of 159 final year medical students participated. CFA showed that the original four-factor model with 15 items achieved acceptable values for the goodness of fit indices, suggesting a good model fit (X2 = 198.295, ChiSq/df = 2.418, RMSEA = 0.095, GFI = 0.867, CFI = 0.953, NFI = 0.923, TLI = 0.940). The Cronbach's alpha values of the mentoring relationship structure, engagement, and competency support domains were 0.96, 0.90 and 0.88, respectively. For autonomy support, the Cronbach's alpha value was 0.62. CONCLUSION: MBS demonstrates a satisfactory level of construct validity and a high level of internal consistency in measuring supportive mentor behaviours in a medical school setting. This result suggests that MBS can be used as a mentorship evaluation tool for feedback in the context of a Malaysian medical school.