Detecting differential item functioning with confirmatory factor analysis and item response theory: toward a unified strategy

In this article, the authors developed a common strategy for identifying differential item functioning (DIF) items that can be implemented in both the mean and covariance structures method (MACS) and item response theory (IRT). They proposed examining the loadings (discrimination) and the intercept (location) parameters simultaneously using the likelihood ratio test with a free-baseline model and Bonferroni corrected critical p values. They compared the relative efficacy of this approach with alternative implementations for various types and amounts of DIF, sample sizes, numbers of response categories, and amounts of impact (latent mean differences). Results indicated that the proposed strategy was considerably more effective than an alternative approach involving a constrained-baseline model. Both MACS and IRT performed similarly well in the majority of experimental conditions. As expected, MACS performed slightly worse in dichotomous conditions but better than IRT in polytomous cases where sample sizes were small. Also, contrary to popular belief, MACS performed well in conditions where DIF was simulated on item thresholds (item means), and its accuracy was not affected by impact.     

Social interactions and cardiovascular reactivity during problem disclosure among friends

The authors examined the relations of social interactions with cardiovascular response in the context of two friends disclosing a problem. They also examined the relations of the sex composition of the dyad and partner gender-related traits (communion/agency) with social interactions. Same-sex and opposite-sex dyads (N = 79) came to the lab. One friend disclosed a real-life problem while the partner provided support; cardiovascular response was monitored. Women provided more emotional support than men, and this sex difference was due to women's higher levels of communion. Agency was linked with greater advice, whereas unmitigated communion was linked with greater negative interactions. Negative interactions predicted slower diastolic blood pressure (DBP) recovery, whereas advice predicted slower heart rate (HR) recovery. Sex composition of dyad moderated some of these effects.     

Leaders' bases of social power and anticipation of targets' resistance as predictors of transactional and transformational leadership

This paper examines the value of power and resistance for predicting transactional and transformational leadership. A sample of 232 leader-follower dyads was used to examine these relationships using Hinkin and Schriesheim's 1989 measure of power, Barbuto's 2000 measure of resistance, and Bass' 1985 measure of transformational leadership. Analysis yielded a significant negative relationship between leaders' Reward Power and their use of Individualized Consideration.     

Caregiver preference for reinforcement‐based interventions for problem behavior maintained by positive reinforcement

Social validity of behavioral interventions typically is assessed with indirect methods or by determining preferences of the individuals who receive treatment, and direct observation of caregiver preference rarely is described. In this study, preferences of 5 caregivers were determined via a concurrent‐chains procedure. Caregivers were neurotypical, and children had been diagnosed with developmental disabilities and engaged in problem behavior maintained by positive reinforcement. Caregivers were taught to implement noncontingent reinforcement (NCR), differential reinforcement of alternative behavior (DRA), and differential reinforcement of other behavior (DRO), and the caregivers selected interventions to implement during sessions with the child after they had demonstrated proficiency in implementing the interventions. Three caregivers preferred DRA, 1 caregiver preferred differential reinforcement procedures, and 1 caregiver did not exhibit a preference. Direct observation of implementation in concurrent‐chains procedures may allow the identification of interventions that are implemented with sufficient integrity and preferred by caregivers.     

The Combined Effects of Measurement Error and Omitting Confounders in the Single-Mediator Model

Mediation analysis requires a number of strong assumptions be met in order to make valid causal inferences. Failing to account for violations of these assumptions, such as not modeling measurement error or omitting a common cause of the effects in the model, can bias the parameter estimates of the mediated effect. When the independent variable is perfectly reliable, for example when participants are randomly assigned to levels of treatment, measurement error in the mediator tends to underestimate the mediated effect, while the omission of a confounding variable of the mediator-to-outcome relation tends to overestimate the mediated effect. Violations of these two assumptions often co-occur, however, in which case the mediated effect could be overestimated, underestimated, or even, in very rare circumstances, unbiased. To explore the combined effect of measurement error and omitted confounders in the same model, the effect of each violation on the single-mediator model is first examined individually. Then the combined effect of having measurement error and omitted confounders in the same model is discussed. Throughout, an empirical example is provided to illustrate the effect of violating these assumptions on the mediated effect.     

Response to Stuart Kauffman: The Paradox of Divine Action and Scientific Truth

We three authors compare and contrast Stuart Kauffman's concept of the “cosmic mind” with similar ideas developed in our recent book, The Unity of Truth: Solving the Paradox of Science and Religion (IUniverse, 2012). Albert Einstein was known to have said: “Science without religion is lame, religion with science is blind.” We authors make use of the “paradox resolution” methods of physics to find a non-conflicting method by which God's actions communicate with human beings without violating any of the laws of science. The “communications paradox” is resolved by hypothesizing non-causal quantum-mechanical measurements as the way God communicates. the quantum-mechanical resolution of the “communications paradox” is completely consistent with both theist belief and the laws of science, whereas Kauffman's “cosmic mind” concept is seen to be consistent with pantheism.     

Effects of the Teacher Versus Students Game on Teacher Praise and Student Behavior

The Teacher versus Students Game is a variation of the Good Behavior Game (Barrish et al. in J Appl Behav Anal 2:119–124, 1969.  https://doi.org/10.1901/jaba.1969.2-119) in which students compete against the teacher to earn points and win the game. Students earn points when they follow rules, whereas the teacher earns points when they do not. The purpose of this study was to examine whether the game decreased students’ off-task behaviors while increasing teachers’ use of behavior-specific praise. Participants were five teachers and fifteen students (some with disabilities and some without) across five fourth and fifth grade elementary school general education classrooms, who were identified by their teachers as engaging in frequent off-task behavior. Results indicated that the game decreased off-task behavior for all students. The game also increased teachers’ use of behavior-specific praise statements, minimally increased general praise statements, and decreased corrective statements for all but one of the teachers.     

An experimental analysis of negative reinforcement contingencies for adult-delivered reprimands

Seven adults participated in simulated teaching sessions with an experimenter who role played as a student with developmental disabilities. The experimenter engaged in problem behavior and either (a) terminated problem behavior contingent on participant reprimands (negative reinforcement) or (b) did not terminate problem behavior contingent on reprimands (extinction). Results suggested that reprimands were sensitive to negative reinforcement in the form of the immediate cessation of problem behavior. These preliminary findings support role play as a potentially viable laboratory model for analyzing behaviors of typical adults.