Lack of statistical significance

Criticism has been leveled against the use of statistical significance testing (SST) in many disciplines. However, the field of school psychology has been largely devoid of critiques of SST. Inspection of the primary journals in school psychology indicated numerous examples of SST with nonrandom samples and/or samples of convenience. In this article we present an argument against SST and its consequent p values in favor of the use of confidence intervals and effect sizes. Further, we present instances of common errors that impede cumulative knowledge in the literature related to school psychology. © 2007 Wiley Periodicals, Inc. Psychol Schs 44: 417–422, 2007.     

Erratum to: Curricular Influences on Female Afterschool Facilitators’ Computer Science Interests and Career Choices

Journal of Science Education and Technology -     

Testing the TIDE: Examining the Nature of Students’ Epistemic Beliefs Using a Multiple Methods Approach

The purpose of this study was to empirically scrutinize Muis, Bendixen, and Haerle's (2006) Theory of Integrated Domains in Epistemology framework. Secondary, college, undergraduate, and graduate students completed self-reports designed to measure their domain-specific and domain-general epistemic beliefs for mathematics, psychology, and general knowledge, respectively. Following completion of the questionnaires, students participated in an interview that further probed their epistemic beliefs to better understand the nature of their beliefs. Results from our study suggest students’ beliefs across domains are somewhat related but still unique to that particular domain. Moreover, analysis of the interviews revealed that students espouse general knowledge beliefs and domain-specific beliefs. Interestingly, students expressed absolutist beliefs about mathematics, but were multiplist in their stances toward psychology and general knowledge. When asked to provide examples that came to mind when reporting their beliefs, students frequently drew on their classroom experiences to explain why they held specific beliefs. We discuss theoretical implications.     

Intergenerational exchange: undergraduate researchers’ learning and listening enhanced through older adults’ entertainment preferences

The purpose of this qualitative study was to provide an intergenerational exchange as undergraduate students taking an introductory Psychology of Aging course, interviewed and watched films with older adult participants (N = 13) residing in an assisted living community. The undergraduate researchers (N = 10) conducted and transcribed interviews, wrote about their perceptions of interviews and film viewing with older adults, and their instructor interviewed assisted living staff (N = 2) creating an assessment of participants, researchers, and staff. Researchers listened and learned from older adult’s words, thereby improving researchers’ understanding that older adults preferred in-person discussions over film viewing. Researchers learned from older adults’ words, as they began to understand that sexual content in today’s films may reduce entertainment viewing for youth and older adults. Older adults described television remotes and phones with frustration and researchers felt angst for their frustration. Findings suggested understanding and meaning for participants and researchers in this service learning intergenerational exchange generated through undergraduate research.     

The lack of representation of educational psychology and school psychology in introductory psychology textbooks

The first goal of this study was to look at the representation of educational and school psychology in introductory psychology textbooks. Research into the representation of other sub‐fields of psychology has been conducted but no research has looked specifically at educational or school psychology. The second goal was to compare the representation of educational and school psychology in introductory psychology textbooks to see if one or the other is receiving more coverage. Third, the textbooks with the most coverage were listed in order to aid educational and school psychologists teaching introductory psychology courses in selecting textbooks that adequately cover material from their sub‐fields. A total of 57 introductory psychology textbooks were content analyzed: 65% of the introductory psychology textbooks had educational psychology material and 65% had school psychology material. However, in the textbooks containing this material the educational and school psychology material made up only .29% and .19% of the textbooks’ total content.     

An integral perspective on teacher evaluation: a review of empirical studies

Educational Assessment, Evaluation and Accountability - Teacher evaluation has been used for decades in schools as a human resource management practice to hold teachers accountable and to help them...     

Empirical Sample Size Guidelines for Use of Latent Difference Score Mediation

Mediation models are commonly used to identify the mechanisms through which one variable influences another. Among longitudinal mediation methods, latent difference score mediation stands out due to its unique ability to capture nonlinear change over time. However, there is limited information regarding sample size demands to achieve adequate power with this method, resulting in few applications of latent difference score mediation. To address this limitation, the current study presents empirically supported sample size guidelines for 10 common latent difference score mediation structural models and 9 unique population models. The results of this study offer researchers with a set of representative sample estimates that may be used when designing studies or seeking funding.     

Understanding number sequences leads to understanding mathematics concepts

Ninety-six first grade students in an urban school system were tested in October and May on reading, mathematics, and their understanding of sequences of letters and numbers. A time lag analysis was subsequently conducted. In such analyses, cross-correlations between the first measurement of one variable and the second measurement of another are compared. The larger of the correlations indicates the direction of the relationship; i.e., which variable is most likely to be causal. Correlations of the fall scores on the number sequences with spring scores on the mathematics concepts scale were significant, while correlations of the fall mathematics concepts scores with spring number sequence scores were negligible. This indicates that understanding such complex sequences has a directional effect on understanding mathematics concepts. Fall–spring cross-correlations for the letter sequences and reading test, although significant, did not differ, and hence provided no indication of the direction of the relationship. Potential explanations were discussed.