A Creation Narrative for the Psychometric Society and <Emphasis Type="Italic">Psychometrika</Emphasis>: In the Beginning There Was Paul Horst

A review is provided for the creation of the Psychometric Society in 1935, and the establishment of its journal, Psychometrika, in 1936. This document is part of the 80th anniversary celebration for Psychometrika’s founding, held during the annual meeting of the Psychometric Society in July of 2016 in Asheville, NC.     

Positive affective tone and team performance: The moderating role of collective emotional skills

Research on affect as a group-level phenomenon has shown that over time, individual members within a group become highly similar in their affect (i.e., members experience and display similar emotions and moods), and often become similar enough that the aggregation of individuals’ affect can meaningfully represent the “affective tone” of the group. It is generally assumed that a more positive affective tone will lead to better team performance. We challenge the conclusion that positive affective tone is always good for team performance, suggesting that the relationship between positive affective tone and team performance is subject to moderating influences. Across two studies, we demonstrate that the self-reported collective emotional skills of team members play a crucial role in determining whether positive affective tone is beneficial or detrimental to team performance. Implications for theory and practice are discussed.     

Benchmarking Treatment Response in Tourette’s Disorder: A Psychometric Evaluation and Signal Detection Analysis of the Parent Tic Questionnaire

This study assessed the psychometric properties of a parent-reported tic severity measure, the Parent Tic Questionnaire (PTQ), and used the scale to establish guidelines for delineating clinically significant tic treatment response. Participants were 126 children ages 9 to 17 who participated in a randomized controlled trial of Comprehensive Behavioral Intervention for Tics (CBIT). Tic severity was assessed using the Yale Global Tic Severity Scale (YGTSS), Hopkins Motor/Vocal Tic Scale (HMVTS) and PTQ; positive treatment response was defined by a score of 1 (very much improved) or 2 (much improved) on the Clinical Global Impressions – Improvement (CGI-I) scale. Cronbach’s alpha and intraclass correlations (ICC) assessed internal consistency and test-retest reliability, with correlations evaluating validity. Receiver- and Quality-Receiver Operating Characteristic analyses assessed the efficiency of percent and raw-reduction cutoffs associated with positive treatment response. The PTQ demonstrated good internal consistency (α = 0.80 to 0.86), excellent test-retest reliability (ICC = .84 to .89), good convergent validity with the YGTSS and HM/VTS, and good discriminant validity from hyperactive, obsessive-compulsive, and externalizing (i.e., aggression and rule-breaking) symptoms. A 55% reduction and 10-point decrease in PTQ Total score were optimal for defining positive treatment response. Findings help standardize tic assessment and provide clinicians with greater clarity in determining clinically meaningful tic symptom change during treatment.     

Studying Stepfamilies: Four Eras of Family Scholarship

Historically, there have always been stepfamilies, but until the early 1970s, they remained largely unnoticed by social scientists. Research interest in stepfamilies followed shortly after divorce became the primary precursor to stepfamily formation. Because stepfamilies are structurally diverse and much more complex than nuclear families, they have created considerable challenges for both researchers and clinicians. This article examines four eras of stepfamily scholarship, tracing the development of research questions, study designs and methods, and conceptual frameworks from the mid‐1970s to the present and drawing implications for the current state of the field.     

Functionalism,the Brain,and Personal Identity

Philosophical Studies -     

Counterfactual intensity

Counterfactual intensity, the strength with which counterfactuals are experienced, influenced the magnitude of affective and preparative reactions. Intensity influenced reactions when counterfactual numbers were held constant for samples of participants' actual experiences (Study 1) and contributed significantly to responses over counterfactual numbers (Study 2) and reaction times (Study 3) after performing laboratory tasks. This was found when participants spontaneously generated counterfactuals (Study 2), and when participants responded to counterfactual statements (Study 3). As upward counterfactuals became intense, so did greater preparation and worse moods; as downward counterfactuals became intense, so did better moods and lesser preparation. Intense moods also conversely influenced the intensity of counterfactuals (Study 3). Conceptual and methodological implications and possibilities for future research are discussed. Copyright © 2000 John Wiley & Sons, Ltd.