Constructs,inferences, and mental measurement

The ‘construct’ concept occupies a significant place in psychology and, yet its role is misunderstood. Psychologists think that theorising in the area of psychological testing involves conjuring constructs, which are operationally defined and measured via psychometric tests. However, the ‘construct’ concept is unworkable and laden with confused philosophical baggage accrued under the hegemony of logical empiricism, and its real function in psychology is obscured. Via an analysis of its history and logic, I expose its flawed conception of the relation between theoretical and observable concepts and the way in which it serves the myth of mental measurement. Finally, it is shown how the actual logic of theorising in science, which entails that theories are best inferred from relevant phenomena, not imaginatively constructed, oppugns this myth and promises to coordinate theoretical concepts with the phenomena to be explained.     

BERTRAND RUSSELL'S 1897 CRITIQUE OF THE TRADITIONAL THEORY OF MEASUREMENT

Synthese - The transition from the traditional to the representational theory of measurement around the turn of the century was accompanied by little sustained criticism of the former. The most...     

A Qualitative Examination of the Relationship Between Body Image and Sexual Behavior: Perceptions from Latina and African American Adolescent Girls and Their Maternal Caregivers

Although prior work suggests that how adolescent girls feel about their body is associated with their sexual behavior, we have less insight into the reasons why. We conducted semi-structured interviews with 25 African American adolescent girls (11–14 years of age), 18 Latina adolescents (14–17 years of age), and their maternal caregivers to explore why this association may exist. Both adolescent girls and their maternal caregivers were asked “Who is more likely to have sex, a girl who likes the way her body looks or a girl who doesn’t like the way her body looks?” A similar question was asked about condom use. Interviews were digitally recorded, transcribed, and coded for emergent themes using thematic analysis. Participants’ responded that both girls with a positive body image and those with a negative body image may be likely to have sex because of self- and body-esteem. Two sub-themes emerged that further explained why low self- and body-esteem mattered for girls who have a negative perception of their body: (a) feeling appreciated (b) easily persuaded. Most participants noted that girls with a positive body image perception would be more likely to use condoms. Emergent themes for using condoms were: (a) pregnancy/STI protection; and (b) body preservation. Our findings have implications for empirically exploring the pathways through which body image perceptions relate to adolescent sexual behaviors, and the possibility that universal prevention programs may not resonate similarly for all adolescent girls.     

Connecting Youth Violence Prevention, Positive Youth Development, and Community Mobilization

Several disconnects serve to weaken the use of evidence based programming in community settings. Communities face the need to address the challenges of multiple risk behaviors faced by adolescents in their communities, but must also work to support successful transitions to adulthood and the broader positive development of their youth. The stronger integration of positive youth development and prevention of youth risk at the community level may offer an opportunity to support the implementation and ongoing development of evidence-based practices (EBPs). This article provides an overview of the VCU Clark-Hill Institute for Positive Youth Development Institute's community mobilization effort in Richmond, Virginia and reports preliminary findings from our integrated mobilization efforts. First, we review the role of our Community Advisory Council in their collaborative work to support positive youth development and reduce risk for youth violence. Next, we present examples of institute efforts in providing technical assistance relevant to supporting the use and development of EBPs. We then discuss the adaptation of an evidence-based program to target positive youth development. We also present overviews from qualitative investigations examining barriers and supports that inform and are relevant to the implementation of EBPs. Finally, we consider ways in which community efforts inform and shape institute efforts to develop EPBs. Taken together, these activities provide examples of how community-based mobilization efforts can integrate and inform the implementation of EBPs and the role and use of prevention science as a tool in supporting effective programming to promote positive youth development and prevent youth violence.     

Performance of chronotypes on memory tests during the morning and the evening shifts

Memory consists of several phases or processes that can be influenced by many factors, including the individual's circadian rhythm and the time of day at which tests are performed. The present objective was to evaluate the performance on memory tests of different chronotypes during the morning and the evening shifts. Subjects (21 men and 26 women, between the ages of 20 and 35 yr.) were evaluated for memory and metamemory differences in the morning and in the afternoon, using a battery of neuropsychological tests composed of the Word List with Emotional Content, Visual Memory, Scale-Semantic Memory, Digit Span, Word-Pairs Associated, Verbal Fluency Test, and Metamemory questionnaire. In the evening shift, there was a statistical difference among chronotypes on the Word List with Neutral Content and on the Verbal Fluency Test. In the morning, there were no statistically significant differences; however, the morning-type subjects had higher scores on the metamemory tests (p<.01), while the evening-type subjects had higher scores in the afternoon (p<.01). In spite of their perception, on Word-Pairs Associated and Word List with Emotional Content, the subjects, independently of their chronotype, showed better performance by the evening than by the morning shift. These results highlight the importance of controlling the shift of day and chronotype in studies with the objective of exploration of human performance.     

The psychometricians' fallacy: Too clever by half?

The psychometricians' fallacy concludes that an attribute is quantitative from the premise that it is ordinal. This fallacy occupies a central place in the paradigm of psychometrics. Most of the founders of the discipline committed it and it makes sense of otherwise anomalous developments within the discipline, such as the permissible statistics controversy and the dominant form taken by item response theories. The fallacy is displayed by showing (1) that an attribute's quantitative structure reduces to a weak order upon differences between degrees that satisfies the double cancellation, solvability, and Archimedean conditions of conjoint measurement theory and (2) the fact that any order on the degrees themselves does not entail sufficient structure on this weak order to guarantee satisfaction of these conditions. Thus, it is possible that an ordered attribute is non‐quantitative. Also, each pair of differences between degrees of an ordinal attribute falls into one of two disjoint classes: (1) those where the order relation between the pair follows from an order on the attribute and (2) those where it is independent of that order and possibly diagnostic of quantitative structure and this fact means that the distinction between order and quantity is an empirical one.