A Unified Theory of Development: A Dialectic Integration of Nature and Nurture

The understanding of nature and nurture within developmental science has evolved with alternating ascendance of one or the other as primary explanations for individual differences in life course trajectories of success or failure. A dialectical perspective emphasizing the interconnectedness of individual and context is suggested to interpret the evolution of developmental science in similar terms to those necessary to explain the development of individual children. A unified theory of development is proposed to integrate personal change, context, regulation, and representational models of development.     

The effect of distributed questioning with varied examples on exam performance on inference questions

The purpose of this study was to investigate whether the distributed presentation of different versions of a question would produce better performance on a new version of the question than distributed presentation of the same version of the question. A total of 48 four question sets of five alternative multiple‐choice questions were presented during a college lecture course. The answers to all the four questions in each set required an inference from the same fact statement. One question in each set appeared on both a block exam and the final. Each of the other three questions was presented either on an online quiz before class, during class or on an online quiz a week after class. Answering different versions of a question before class, during class and after class resulted in better performance on a fourth version of the question on the exam and final than answering the same question before class, during class and after class. On the final exam, 44 questions were answered twice, first under a time constraint of 90 seconds and then when response time was unlimited. The two responses were virtually identical.     

The impact of institutional ethics on academic health sciences library leadership: a survey of academic health sciences library directors

Ethical behavior in libraries goes beyond service to users. Academic health sciences library directors may need to adhere to the ethical guidelines and rules of their institutions. Does the unique environment of an academic health center imply different ethical considerations? Do the ethical policies of institutions affect these library leaders? Do their personal ethical considerations have an impact as well? In December 2013, a survey regarding the impact of institutional ethics was sent to the director members of the Association of Academic Health Sciences Libraries. The objective was to determine the impact of institutional ethics on these leaders, whether through personal conviction or institutional imperative.     

The misuse and abuse of statistics in biomedical research

Statistics are the primary tools for assessing relationships and evaluating study questions. Unfortunately, these tools are often misused, either inadvertently because of ignorance or lack of planning, or conspicuously to achieve a specified result. Data abuses include the incorrect application of statistical tests, lack of transparency and disclosure about decisions that are made, incomplete or incorrect multivariate model building, or exclusion of outliers. Individually, each of these actions may completely invalidate a study, and often studies are victim to more than one offense. Increasingly there are tools and guidance for researchers to look to, including the development of an analysis plan and a series of study specific checklists, in order to prevent or mitigate these offenses.Key words: a priori, analytical plan, statistical methods, disclosure, transparency, biostatistics     

Confirmatory factor analysis of the Sport Emotion Questionnaire in organisational environments

The Sport Emotion Questionnaire (SEQ) (Jones, M. V., Lane, A. M., Bray, S. R., Uphill, M., & Catlin, J. (2005). Development and validation of the SEQ. Journal of Sport and Exercise Psychology, 27, 407–431) was developed and initially validated to assess sport performers’ pre-competitive emotions. The purpose of this study was to test the factor structure of the SEQ in a different environment (viz. organisational) and at a different time point (viz. the past month). A further aim was to examine if the SEQ was invariant across different groups of sport performers. A diverse sample of athletes (n = 1277) completed the questionnaire. Fit indices from confirmatory factor analyses provided partial support for the hypothesised measurement model, with equal or better fit demonstrated than evident in initial validation. The comparative fit index values were above acceptable guidelines for all factors at subscale level. Evidence was also found for the invariance of the SEQ across different groups. Overall, the findings support the reliability and validity of the SEQ as a measure of the emotions experienced by sport performers in an organisational environment during the past month.