The Roles of Parental Support and Family Stress in Adolescent Sleep          下载免费PDF全文

Kim M. Tsai  Ronald E. Dahl  Michael R. Irwin  Julienne E. Bower  Heather McCreath  Teresa E. Seeman  David M. Almeida  Andrew J. Fuligni 《Child development》2018,89(5):1577-1588

The current study examines the association between parental support and adolescent sleep under varying levels of family stress. Participants included 316 adolescents (M_age = 16.40 years, 43% male) and their parents (M_age = 45.67 years, 91% mothers) from diverse ethnic backgrounds. Both adolescents and parents completed questionnaires and adolescents wore wrist actigraphs and completed self‐reports on their sleep for 7 consecutive days. Results indicated that under contexts of family stress, more parental support was linked to longer sleep duration, less sleep variability, and less time spent awake during the night. Findings suggest that under contexts of family stress, cohesive family relationships may provide a sense of stability and security that is necessary for healthful sleep.  相似文献   

Book review     

David Wheeler 《Educational Studies in Mathematics》1996,31(3):339-348

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Evaluating students' misconceptions by means of diagnostic multiple choice items     

David Treagust 《Research in Science Education》1986,16(1):199-207

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Comparing Models of Change to Estimate the Mediated Effect in the Pretest–Posttest Control Group Design     

Matthew J. Valente  David P. MacKinnon 《Structural equation modeling》2017,24(3):428-450

Models to assess mediation in the pretest–posttest control group design are understudied in the behavioral sciences even though it is the design of choice for evaluating experimental manipulations. The article provides analytical comparisons of the four most commonly used models to estimate the mediated effect in this design: analysis of covariance (ANCOVA), difference score, residualized change score, and cross-sectional model. Each of these models is fitted using a latent change score specification and a simulation study assessed bias, Type I error, power, and confidence interval coverage of the four models. All but the ANCOVA model make stringent assumptions about the stability and cross-lagged relations of the mediator and outcome that might not be plausible in real-world applications. When these assumptions do not hold, Type I error and statistical power results suggest that only the ANCOVA model has good performance. The four models are applied to an empirical example.  相似文献   

Avoiding Bias in Randomised Controlled Trials in Educational Research   总被引：1，自引：0，他引：1  

David J. Torgerson  & Carole J. Torgerson 《British Journal of Educational Studies》2003,51(1):36-45

Randomised controlled trials (RCTs) are often seen as the 'gold standard' of evaluative research. However, whilst randomisation will ensure comparable groups, trials are still vulnerable to a range of biases that can undermine their internal validity. In this paper we describe a number of common threats to the internal validity of RCTs and methods of countering them. We highlight a number of examples from randomised trials in education and health care where problems of execution and analysis of the RCT has undermined their internal validity. However, awareness of these potential biases can lead to careful planning to avoid or reduce their occurrence. If good quality randomised trials are to inform policy and practice in education then rigorous trials need to be designed that are the least susceptible to threats to their validity.  相似文献   

Successive reversals of a discriminated preference for signaled tailshock     

Ralph R. Miller  David Daniel  Alvin M. Berk 《Learning & behavior》1974,2(4):271-274

Three rats received unmodifiable tailshock at random intervals in a shuttlebox. In a continuous-choice situation, Ss could choose between an auditory signal immediately preceding or immediately following the tailshock. Over repeated daily 3-h sessions, each S acquired a spatial discrimination indicating a strong preference for the signal preceding tailshock. This preference continued undiminished through two successive reversals of the position associated with signaled shock. This demonstration precludes explanations of the preference-for-signaled-shock phenomenon based upon primary reinforcement value or acquired value of the signal, position preferences, and overt modification of the aversiveness of the reinforcer through such means as postural adjustments. An explanation of recent failures to obtain the preference-for-signaled-shock effect is offered.  相似文献   

A critical appraisal of Marie Clay's ‘Concepts About Print Test’     

David N. Hartley  Peter G. Quine 《Literacy》1982,16(2):109-112

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Depth of processing and the quality of learning outcomes     

David Watkins 《Instructional Science》1983,12(1):49-58

Problems associated with earlier research on the relationship between depth of processing and quality of learning outcomes are first discussed. Then I present an interview study with 60 second year tertiary students which supports the hypothesis that depth of processing is related to the quality of learning outcomes.  相似文献   

The effects of isolation and handling on reactivity to footshock and tactile dorsal stimulation     

Richard J. Viken  Danny L. Moore  John F. Knutson  David J. Fordyce 《Learning & behavior》1982,10(2):135-140

The effects of isolation and handling on the reactivity of rats to two tactile stimuli were assessed in two experiments. In the first experiment, reactivity to more intense footshock was increased in rats raised in isolation but was not affected by handling by an experimenter. In the second experiment, increased reactivity to airpuff stimuli presented to the dorsal surface of isolation-reared rats was reduced by handling. The data suggest that the effects of handling on shock-motivated behaviors are not due to altered reactivity to shock and that the effect of housing or handling must be considered in behavioral tests in which reactivity to tactile stimulation might play a role as dependent or independent variables.  相似文献   

Secondary science teachers' knowledge base when teaching science courses in and out of their area of certification     

Linda R. Sanders  Hilda Borko  J. David Lockard 《科学教学研究杂志》1993,30(7):723-736

This study examined the similarities and differences in experienced secondary science teachers' planning, teaching, and reflecting on their teaching, when teaching in their science area of certification and when teaching in another science area. The study also focused on the influence of these teachers' content knowledge, pedagogical knowledge, and pedagogical content knowledge on their planning, teaching, and reflecting. Experienced teachers were observed and interviewed while teaching classes in their science area of certification, and in another science area they were teaching for the first or second time. Both similarities and differences in teaching were found in the two areas for all three teachers. For example, their planning and postlesson reflections were similar in both areas. In the interactive phase of teaching more differences were observed. Many aspects of their teaching resembled that of expert teachers in other studies. In the unfamiliar science area, the teachers sometimes acted like novice teachers. However, they were able to draw upon their pedagogical knowledge to provide a framework for their teaching in both science areas. Their wealth of pedagogical knowledge, and pedagogical content knowledge for general science topics, seemed to sustain them in whatever content they were teaching. Recommendations for further study and implications for teacher education are discussed.  相似文献