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Climate change is widely recognised as an urgent issue, and the number of people concerned about it is increasing. While emotions are among the strongest predictors of behaviour change in the face of climate change, researchers have only recently begun to investigate this topic experimentally. This may be due to the lack of standardised, validated stimuli that would make studying such a topic in experimental settings possible. Here, we introduce a novel Emotional Climate Change Stories (ECCS) stimuli set. ECCS consists of 180 realistic short stories about climate change, designed to evoke five distinct emotions-anger, anxiety, compassion, guilt and hope-in addition to neutral stories. The stories were created based on qualitative data collected in two independent studies: one conducted among individuals highly concerned about climate change, and another one conducted in the general population. The stories were rated on the scales of valence, arousal, anger, anxiety, compassion, guilt and hope in the course of three independent studies. First, we explored the underlying structure of ratings (Study 1; n = 601). Then we investigated the replicability (Study 2; n = 307) and cross-cultural validity (Study 3; n = 346) of ECCS. The collected ratings were highly consistent across the studies. Furthermore, we found that the level of climate change concern explained the intensity of elicited emotions. The ECCS dataset is available in Polish, Norwegian and English and can be employed for experimental research on climate communication, environmental attitudes, climate action-taking, or mental health and wellbeing.
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Mudança Climática , Emoções , Humanos , Emoções/fisiologia , Feminino , Masculino , Adulto , Adulto Jovem , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Adolescente , Ansiedade/psicologiaRESUMO
BACKGROUND: The World Health Organization's Quality of Life Questionnaire (WHOQOL-Bref) is a frequently used instrument to assess the quality of life in both healthy and ill populations. Inquiries of the psychometric properties of the WHOQOL-Bref report that the validity and reliability is generally satisfactory. However, some studies fail to support a four-factor dimensionality; others report poor reliability of the social and environmental domain; and there may be some challenges of supporting construct validity across age. This paper evaluates the psychometric properties of the Norwegian WHOQOL-Bref and extends previous research by testing for measurement invariance across age, gender and education level. In addition, we provide updated normative data for the Norwegian population. METHODS: We selected a random sample of the Norwegian population (n = 654) aged 18-75 years. Participants filled out the WHOQOL-Bref, the Utrecht Work Engagement Scale and various sociodemographic variables. RESULTS: We found an acceptable convergent and discriminate validity and internal consistency of the physical, psychological and environmental domains, but a marginal reliability was found for the social domain. The factor loadings were invariant across gender, education and age. Some items had low factor loadings and explained variance, and the model fit for the age group 60-75 years were less satisfactory. CONCLUSIONS: The original four-factor dimensionality of the WHOQOL-Bref displayed a better fit to the data compared to the one-factor solution and is recommended for use in the Norwegian population. The WHOQOL-Bref is suitable to use across gender, education and age, but for assessment in the oldest age group, the WHOQOL-Old module could be a good supplementary, but further studies are needed.
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Nível de Saúde , Satisfação Pessoal , Qualidade de Vida/psicologia , Inquéritos e Questionários/normas , Adolescente , Adulto , Idoso , Escolaridade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Exame Físico , Psicometria/instrumentação , Reprodutibilidade dos Testes , Organização Mundial da Saúde , Adulto JovemRESUMO
PURPOSE: To investigate, in adolescents referred for psychiatric services, the associations of initial self-esteem and family functioning with level and change of quality of life (QoL) over a 3-year period, over and above the effect of their emotional problems. METHODS: Of 1648 eligible 13-18 years old patients attending the child and adolescent psychiatric clinic (CAP) at least once, 717 (54.8% females) were enrolled at baseline (a response rate of 43.5%). Self- and parent reports on the McMaster Family Assessment Device were obtained. Adolescents reported self-esteem on the Rosenberg Scale, and emotional problems on the Symptom Check List-5. Adolescents completed the Inventory of Life Quality in Children and Adolescents (ILC). After 3 years, 570 adolescents again completed the ILC, and for 418 adolescents parent information was available. The longitudinal analysis sample of 418 adolescents was representative of the baseline sample for age, gender, emotional problems, and QoL. We used modified growth-model analysis, adjusted for SES, age, gender and time of contact with CAP, where residual variances for ILC at baseline and follow-up were fixed to 0. RESULTS: A poorer family functioning at baseline, reported by parents, was significantly associated with worsening QoL during the 3 years follow-up period (p = 0.001). CONCLUSIONS: Parents have important knowledge about their families that may reflect long-term influences on QoL development in adolescent psychiatric patients. Health care providers and policy makers should optimize treatment outcomes by addressing family functioning in adolescents with emotional problems.
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Transtornos Mentais/terapia , Qualidade de Vida/psicologia , Autoimagem , Adolescente , Criança , Feminino , Seguimentos , Humanos , Masculino , Inquéritos e QuestionáriosRESUMO
Little is known about the mechanisms through which routine outcome monitoring (ROM) influences psychotherapy outcomes. In this secondary analysis of data from a randomized clinical trial (Brattland et al., 2018), we investigated whether the working alliance mediated the effect of the Partners for Change Outcome Monitoring System (PCOMS), a ROM system that provides session-by-session feedback on clients' well-being and the alliance. Adult individuals (N = 170) referred for hospital-based outpatient mental health treatment were randomized to individual psychotherapy either with the PCOMS ROM system, or without (treatment as usual [TAU]). Treatment was provided by the same therapists (N = 20) in both conditions. A multilevel mediation model was developed to test if there was a significant indirect effect of ROM on client impairment at posttreatment through the alliance at 2 months' treatment controlled for first-session alliance. Alliance ratings increased more from session 1 to 2 months' treatment in the ROM than TAU condition, and alliance increase was associated with less posttreatment impairment. A significant indirect effect of ROM on treatment outcomes through alliance increase (p = .043) explained an estimated 23.0% of the effect of ROM on outcomes. The results were consistent with a theory of the alliance as one mechanism through which ROM works. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
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Retroalimentação Psicológica , Pessoal de Saúde/normas , Relações Profissional-Paciente , Psicoterapia/normas , Adulto , Feminino , Pessoal de Saúde/tendências , Humanos , Masculino , Noruega/epidemiologia , Psicoterapia/tendências , Resultado do TratamentoRESUMO
This paper studies the application of a stage-based model of consumer behavior change on describing the processes behind the reduction of beef consumption in two Norwegian samples (N = 746, N = 2967). The way to reduce beef consumption is modeled through a progression through four stages (predecision, decision, action, and postaction) with a chain of first forming goal intentions, then more concrete behavioral intentions and finally implementation intentions. The analyzes show that general goal intentions to reduce beef consumption are determined by perceived social norms and awareness of a behaviors negative consequences through the activation of personal norms. Attitudes are the main determinant of choosing the alternative behavior (reduction of portion size, substitution of beef with other meats or seafood, or vegetarian meals), but perceived difficulty of behavior also has an impact for some alternatives. Not all alternative behaviors correspond to reduced beef consumption. The pattern of means in beef consumption and intentions for consumers in different stages of change mostly matched predictions by the model, most importantly, showing beef consumption reduction only for consumers in the last stage of change. Implications for interventions are discussed.
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Comportamento de Escolha , Dieta , Preferências Alimentares , Carne Vermelha , Adulto , Animais , Bovinos , Comportamento do Consumidor , Dieta Vegetariana , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Intenção , Masculino , Pessoa de Meia-Idade , Noruega , Tamanho da Porção , Adulto JovemRESUMO
Extended functional impairment characterized by sick leave and disability after a single disaster has not been documented before. This prospective, longitudinal, case-control study applied growth mixture modeling to predict trajectories of functional impairment in oil rig workers, survivors (n = 68) and a matched comparison group (n = 84), over 27 years after the 1980 North Sea oil rig disaster. In the initial 12 years post-disaster, survivors displayed higher rates of functional impairment than the comparison group. A minor group of survivors (n = 8, 11.8%) demonstrated persistent functional impairment from the start and remained unable to work during the subsequent three decades. Long-term sick leave and disability were related to perceived peritraumatic death threat and a propensity towards social withdrawal. Most survivors (n = 60) revealed no major functional impairment. The study indicates that functional impairment should be counteracted in the early support after a single disaster.
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Acidentes de Trabalho/estatística & dados numéricos , Desastres/estatística & dados numéricos , Indústria de Petróleo e Gás/estatística & dados numéricos , Licença Médica/estatística & dados numéricos , Sobreviventes/estatística & dados numéricos , Indenização aos Trabalhadores/estatística & dados numéricos , Estudos de Casos e Controles , Humanos , Masculino , Pessoa de Meia-Idade , Noruega , Estudos ProspectivosRESUMO
BACKGROUND: Symptoms of anxiety and depression are significantly associated in parents and children, but few studies have examined associations between recurrent parental problems and offspring symptoms, and fathers have rarely been included in these studies. Additionally, few have investigated factors that may protect against familial aggregation of anxiety and depression. The aims of the present study are to examine the associations between recurrent parental anxiety/depression over a ten-year time span and offspring anxiety/depression in adolescence and to test whether two factors proposed to be inversely related to anxiety and depression, namely, adolescent self-esteem and physical activity, may moderate and mediate the transmission of anxiety/depression. METHODS: This study used data from two waves of a Norwegian community study (the HUNT study) consisting of 5,732 adolescents, ages 13-18, (mean age = 15.8, 50.3% girls) who had one (N = 1,761 mothers; N = 742 fathers) or both parents (N = 3,229) participating in the second wave. In the first wave, 78% of the parents also participated. The adolescents completed self-reported questionnaires on self-esteem, physical activity, and symptoms of anxiety/depression, whereas parents reported on their own anxiety/depressive symptoms. The data were analysed with structural equation modeling. RESULTS: The presence of parental anxiety/depression when offspring were of a preschool age predicted offspring anxiety/depression when they reached adolescence, but these associations were entirely mediated by current parental symptoms. Self-esteem partly mediated the associations between anxiety/depression in parents and offspring. No sex differences were found. Physical activity moderated the direct associations between anxiety/depression in mothers and offspring, whereas no moderating effect was evident with regard to paternal anxiety/depression. CONCLUSIONS: These findings suggest that children of parents with anxiety/depression problems are at a sustained risk for mental health problems due to the apparent 10-year stability of both maternal and paternal anxiety/depression. Thus, preventing familial aggregation of these problems as early as possible seems vital. The associations between parental and offspring anxiety/depression were partially mediated by offspring self-esteem and were moderated by physical activity. Hence, prevention and treatment efforts could be aimed at increasing self-esteem and encouraging physical activity in vulnerable children of parents with anxiety/depression.
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Ansiedade/psicologia , Depressão/psicologia , Família/psicologia , Pai/psicologia , Autoimagem , Adolescente , Comportamento do Adolescente , Adulto , Exercício Físico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mães/psicologia , Noruega , Autorrelato , Fatores Socioeconômicos , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Discussing obesity with the patient without this being perceived as offensive may represent a challenge. Prevention of lifestyle diseases requires that this topic be addressed with those concerned. In this study, we investigate the patients' sensitivity to expressions, i.e. their notions of appropriateness or inappropriateness regarding various terms for obesity, and what patient characteristics are associated with such sensitivity to expressions. MATERIAL AND METHOD: The investigation is part of a five-year study of patients in Central Norway who were treated for morbid obesity. The terms used in the study had been suggested by the Overweight Patients' Association. Data on sensitivity to expressions were collected with the aid of a questionnaire one year after completion of the treatment. RESULTS: Altogether 157 out of 206 participants completed the questionnaire. Their average body mass index (BMI) (SD) amounted to 37.6 kg/m² (7.3 kg/m²). Their sensitivity to 14 different designations varied. «Weight¼, «overweight¼ and «weight problem¼ returned the best scores, whereas «obesitas¼, «obese¼ and «fat¼ were deemed least appropriate. The highest sensitivity to expressions was found among women, those who developed overweight early in life, those who had higher education and those who were dissatisfied with their weight. INTERPRETATION: The perceptions of various expressions for overweight and obesity varied considerably. Knowledge about this topic may be relevant for doctors and other health personnel in prevention and treatment of obesity.
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Obesidade , Sobrepeso , Terminologia como Assunto , Adulto , Fatores Etários , Índice de Massa Corporal , Escolaridade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Noruega , Obesidade/classificação , Obesidade/psicologia , Sobrepeso/classificação , Sobrepeso/psicologia , Relações Profissional-Paciente , Fatores Sexuais , Inquéritos e QuestionáriosRESUMO
Introduction: To achieve substantial energy efficiency improvements in the privately owned building stock, it is important to communicate with potential renovators at the right point in time and provide them with targeted information to strengthen their renovation ambitions. The European Union recommends using one-stop-shops (OSSs), which provide information and support throughout the whole process, from planning to acquisition of funding, implementation, and evaluation as a measure to remove unnecessary barriers. Methods: For this paper, we invited visitors of two Norwegian websites with OSS characteristics to answer an online survey about their renovation plans and energy efficiency ambitions. The participants visited the websites out of their own interest; no recruitment for the websites was conducted as part of the study (N = 437). They also rated a range of psychological drivers, facilitators, and barriers to including energy upgrades in a renovation project. Their answers were then compared to existing data from representative samples of Norwegian households regarding home renovation in 2014, 2018, and 2023, as well as data from a sample of people who were engaged in renovation projects in 2014, which was collected by the research team with a similar online survey. Furthermore, 78 visitors completed a brief follow-up online survey one year later to report the implemented measures. Results: We found that visitors of the websites are involved in more comprehensive renovation projects and have substantially higher ambitions for the upgrade of energy efficiency compared to the representative samples. They also perceive stronger personal and social norms, as well as have a different profile of facilitators and barriers. Discussion: The findings suggest to policymakers that OSSs should be marketed especially to people motivated to upgrade energy efficiency but lack information and are unable to implement their plans alone. Also, the construction industry might refer interested people to such low-threshold online solutions to assist informed and more ambitious decisions.
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There is an increasing research interest in emotional responses to climate change and their role in climate action and psycho-social impacts of climate change. At the same time, emotional experience of climate change is multidimensional and influenced by a variety of factors, including the local cultural context. Here, we contribute to the scientific debate about this topic with original quality-controlled data from the general populations in Norway (N = 491) and Ireland (N = 485). We investigate the cross-cultural validity and the nomological span of eight distinct emotional responses to climate change - climate anger, climate contempt, climate enthusiasm, climate powerlessness, climate guilt, climate isolation, climate anxiety, and climate sorrow - measured using the recently introduced Inventory of Climate Emotions. We first validate the 8-factor structure of the Norwegian and English language versions of the ICE. Subsequently, we demonstrate a high degree of cross-cultural measurement invariance for these eight climate emotions. Finally, we explore the relationships between these emotional responses and a range of theoretically relevant variables. In this final step, we show that climate emotions are differentially linked to climate change perceptions, support for mitigation policies, socio-demographic factors, feelings of loneliness and alienation, environmental activism, and the willingness to prioritize the natural environment over one's immediate self-interests. Some of these links are also differentiated by the cultural context. This research presents further evidence for the structural, cross-cultural, and concurrent validity of climate emotions as postulated in the ICE framework. Moreover, it provides tools in the form of validated Norwegian and English language versions of the ICE, the complete R code for the validation analysis, as well as an informed basis for cross-cultural research on emotional responses to climate change.
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A holistic understanding of human behaviour is considered key for a successful fight against climate change and environmental degradation. In the pursuit of a holistic understanding, empirical research frequently applies the concept of "lifestyle". The concept, which plays a significant role in segmenting customers in the field of marketing, is increasingly used in the cross-domain analysis of behaviour in the field of sustainability. This increase is tied to the challenge that the meaning and operationalisation of the lifestyle concept are still highly fragmented after decades of empirical studies. While this methodological heterogeneity and pluralism of research traditions bring creativity and dynamic to the field, it makes the orientation and a comparison of studies challenging. Previous attempts to streamline lifestyle oriented research have often aimed for a single mode of operationalisation, but this does not meet the diversity of possible applications of the concept. Therefore, a better understanding of the field seems necessary. To fill this gap, we review the understanding and use of the "lifestyle" concept in 53 empirical studies in the field of sustainability and identify 12 variants of lifestyle related research, differing along three dimensions. According to our results, (I) lifestyle can either be used as a cause or as a consequence, (II) the analytical scope can be on a micro-, meso- or macro level, and (III) the behavioural scope can be either limited to a single behavioural domain or cover multiple domains. The three dimensions allow a mapping of existing and future empirical research using the "lifestyle" concept, improve the orientation in the field, facilitate the identification of relevant studies, and avoid imprecise comparisons due to methodological differences.
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BACKGROUND AND AIMS: As a part of the framework of the EU-funded Energy efficiency through Behavior CHANge Transition (ENCHANT) project, the present paper intends to provide a "Research Protocol" of a web-based trial to: (i) assess the effectiveness of behavioral intervention strategies--either single or in combination--on electricity saving, and (ii) unravel the psychological factors contributing to intervention effectiveness in households across Europe. METHODS AND MATERIALS: Six distinct interventions (i.e., information provision, collective vs. individual message framing, social norms, consumption feedback, competitive elements, and commitment strategies) targeting electricity saving in households from six European countries (i.e., Austria, Germany, Italy, Norway, Romania, and Türkiye) are evaluated, with an initial expected samples of about 1500 households per country randomly assigned to 12 intervention groups and two control groups, and data is collected through an ad-hoc online platform. The primary outcome is the weekly electricity consumption normalized to the last seven days before measurement per person per household. Secondary outcomes are the peak consumption during the last day before measurement and the self-reported implementation of electricity saving behaviors (e.g., deicing the refrigerator). The underlying psychological factors expected to mediate and/or moderate the intervention effects on these outcomes are intentions to save electricity, perceived difficulty of saving energy, attitudes to electricity saving, electricity saving habit strength, social norms to save electricity, personal norms, collective efficacy, emotional reaction to electricity consumption, and national identity. The intervention effectiveness will be evaluated by comparing psychological factors and consumption variables before and after the intervention, leading to a 14 (groups including 2 control groups) × 6 (time) mixed factorial design, with one factor between (group) and one factor within subjects (time)-6 measurements of the psychological factors and 6 readings of the electricity meters, which gives then 5 weeks of electricity consumption. RESULTS: Data collection for the present RCT started in January 2023, and by October 2023 data collection will conclude. DISCUSSION: Upon establishing feasibility and effectiveness, the outcomes of this study will assist policymakers, municipalities, NGOs, and other communal entities in identifying impactful interventions tailored to their unique circumstances and available resources. Researchers will benefit from a flexible, structured tool that allows the design, implementation and monitoring of complex interventions protocols. Crucially, the intervention participants will benefit from electricity saving strategies, fostering immediate effectiveness of the interventions in real-life contexts. TRIAL REGISTRATION: This trial was preregistered in the Open Science Framework: https://osf.io/9vtn4.
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Estilo de Vida , Humanos , Europa (Continente) , Internet , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de PesquisaRESUMO
Do risk preferences play a role when deciding whether to act pro-environmentally? Looking at 28 different behaviors case by case - including recycling, waste reduction, energy and water conservation, consumer behavior, and environmental policy support - our data suggest no relation between most of the behaviors and economic risk preferences. However, economic risk preferences appear to have some relevance for travel mode choice and for specific consumer preferences (eco-friendly detergents, organic food, and single-use plastics), perhaps because people are better able to appreciate aspects of these behaviors related to risk (e.g., possibility of traffic accidents, health risks).
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Riding an e-scooter under the influence of alcohol is one of the most frequently reported risky behaviours among riders in various countries, especially in the Nordic countries. What is the Number of Alcohol Units perceived to be Safe (NAUS) before riding an e-scooter? Who is more likely to report higher perceived alcohol tolerance before riding an e-scooter? What is the level of risk perception in this transport domain? The current study advances the literature by aiming to address these questions. Using a cross-sectional survey (n = 395) in Trondheim, Norway we developed an integrated model combining a path analysis with negative binomial regression to predict NAUS before riding an e-scooter. Results show that (i) around 56 % of participants reported that it is safe to consume one or more units of alcohol prior to riding an e-scooter, (ii) younger people, frequent users of e-scooters, individuals with low education, and people with lower perceived risks of an accident were more likely to report higher NAUS. Alcohol health warnings and random blood alcohol concentration tests on e-scooter sites could be prioritised among these segments of the population, and (iii) there is a rather high risk perception in this transport domain. We found that there are strong connections between higher risk perception, worry and fewer NAUS. Policymakers could highlight risks of accidents by e-scooters under the influence of alcohol.
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Intoxicação Alcoólica , Alcoolismo , Humanos , Acidentes de Trânsito/prevenção & controle , Estudos Transversais , Intoxicação Alcoólica/prevenção & controle , Noruega , Dispositivos de Proteção da CabeçaRESUMO
BACKGROUND: School absenteeism is a complex problem that includes risk factors associated with individual traits, socio-economic conditions, family structure, the school and society. The consequences of extensive school absenteeism can be detrimental for the youth. METHOD: In this exploratory study we aimed to investigate the relative importance of different risk factors on school absenteeism. We assessed 865 Norwegian high school students testing a model of school absenteeism using Exploratory Structural Equation Modelling (ESEM). RESULTS: Analysis show that on the individual level most of the measured risk factors were significantly associated with absenteeism. School absenteeism was predicted by externalising behaviour, family work and health, and school environment directly. CONCLUSION: The implications of the findings on school absenteeism are that it will be important to focus more on the context and co-occurrence of these problems in order to fully understand them.
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This paper provides a comprehensive overview of field experiments utilizing social norms, commitment and price-based interventions to promote energy conservation, load shifting, and energy efficiency behaviors. Treatment effects reported in the extant literature, as well as the factors that may strengthen or dampen these effects are reviewed. We find that social norm and incentive-based interventions mostly achieve small reductions in energy consumption, and that the effects of commitment-based interventions are essentially zero for the most part. Incentive effects on energy efficiency investments are mostly non-existent, safe for a few exceptions. One gap that we identify is the almost complete absence of field experiments leveraging social norms or commitment to promote energy efficiency investments. We discuss a broad range of (mostly under-researched) plausible moderators of the interventions' effects. Crucially, a more careful attention to moderators in future research can highlight instances in which interventions can be effective, notwithstanding their modest or non-existent average treatment effects. Our review offers a starting point in this regard.
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This study analyzed trajectories of initial stress and long-term mental health after the 1980 North Sea oil rig disaster. A growth-mixture model of the survivors' stress manifestations in the first 8 weeks (Posttraumatic Stress Scale, [PTSS-10]) and general mental health in 1980, 1981, 1985, and 2007 (General Health Questionnaire, [GHQ-20]) was estimated. Survivors' GHQ-scores in 1985 and 2007 were contrasted to those of a comparison group. Four trajectories were identified among survivors. The resilient (n = 43) displayed initially moderate stress that rapidly declined. The recovery (n = 10), chronic (n = 8), and relapse (n = 9) showed initially stable high stress scores, but the long-term mental health differed. Early screening may identify those at long-term risk.
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Desastres , Saúde Mental , Estresse Psicológico , Sobreviventes/psicologia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e QuestionáriosRESUMO
Previous research shows that female athletes sleep better according to objective parameters but report worse subjective sleep quality than male athletes. However, existing sleep studies did not investigate variations in sleep and sleep stages over longer periods and have, so far, not elucidated the role of the menstrual cycle in female athletes' sleep. To address these methodological shortcomings, we investigated sex differences in sleep and sleep stages over 61 continuous days in 37 men and 19 women and examined the role of the menstrual cycle and its phases in 15 women. Sleep was measured by a non-contact radar, and menstrual bleeding was self-reported. Associations were investigated with multilevel modeling. Overall, women tended to report poorer subjective sleep quality (p = .057), but objective measurements showed that women obtained longer sleep duration (p < .001), more light (p = .013) and rapid eye movement sleep (REM; hours (h): p < .001, %: p = .007), shorter REM latency (p < .001), and higher sleep efficiency (p = .003) than men. R2 values showed that sleep duration, REM and REM latency were especially affected by sex. Among women, we found longer time in bed (p = .027) and deep sleep (h: p = .036), and shorter light sleep (%: p = .021) during menstrual bleeding vs. non-bleeding days; less light sleep (h: p = .040), deep sleep (%: p = .013) and shorter REM latency (p = .011) during the menstrual than pre-menstrual phase; and lower sleep efficiency (p = .042) and more deep sleep (%: p = .026) during the follicular than luteal phase. These findings indicate that the menstrual cycle may impact the need for physiological recovery, as evidenced by the sleep stage variations. Altogether, the observed sex differences in subjective and objective sleep parameters may be related to the female athletes' menstrual cycle. The paper provides unique data of sex differences in sleep stages and novel insights into the role of the menstrual cycle in sleep among female athletes.
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Atletas , Ciclo Menstrual/fisiologia , Fases do Sono/fisiologia , Sono/fisiologia , Adolescente , Ritmo Circadiano/fisiologia , Feminino , Humanos , Masculino , Caracteres Sexuais , Vigília/fisiologiaRESUMO
Understanding how psychological processes drive human energy choices is an urgent, and yet relatively under-investigated, need for contemporary society. A knowledge gap still persists on the links between psychological factors identified in earlier studies and people's behaviors in the energy domain. This research applies a meta-analytical procedure to assess the strength of the associations between five different classes of individual variables (i.e.,: attitudes, intentions, values, awareness, and emotions) and energy-saving behavioral intentions and behaviors (self-reported and actual). Based on a systematic review of studies published between 2007 and 2017, we estimate the average effect size of predictor-criterion relations, and we assess relevant moderators and publication bias, drawing on data obtained from 102 independent samples reported in 67 published studies (N = 59.948). Results from a series of five single meta-analyses reveal a pattern of significant positive associations between the selected psychological determinants and energy-saving indicators: associations between individual-level predictors and energy-saving outcomes are positive and moderate in size, ranging from large effects for emotions to small-moderate effects for pro-environmental values. Interestingly, moderation analysis reveals, among other things, that attitude-behavior links are not statistically significant when actual behavior is considered as an outcome. Implications for policy interventions are discussed.