The coding of constrained and preselected movement distance: Same-limb versus switched-limb reproduction

Three experiments were conducted to investigate the codes subserving the retention of movement extent information. Each experiment compared preselected and constrained movements in two independent movement tasks: same-limb reproduction and switched-limb reproduction. When movement direction was the same for both criterion and reproduction movements (experiment 1), same-limb reproduction was more accurate than switched-limb performance. With movement direction altered, however, switched-limb reproduction was equal to same-limb reproduction (experiment 2). These results were confirmed in experiment 3 which manipulated both movement direction and reproduction limb in a within-subject design. Furthermore, while preselected reproduction was superior to constrained reproduction in all three experiments, the two groups were not differentially affected by either the movement task or direction variables. The overall findings were interpreted as providing support for a multiple-cue memorial representation of movement extent and the notion of coding flexibility.     

The origins of fear of snakes

In the present study, a questionnaire about the nature and origin of fear of snakes was administered to 60 Phobic, 82 Low Fear and 35 High Fear college students. Phobic and High Fear subjects reported greater fear on a variety of components of snake fear. There was little evidence supporting the role of direct conditioning experiences in the acquisition of fear of snakes. Rather, the results suggested a variety of observational and instructional learning experiences as related to the acquisition of snake fear. Although preparedness for direct conditioning does not seem relevant, a preparedness for observational and instructional learning is possible.     

Family Processes and Mental Health among Children and Caregivers in a Family Strengthening Program

Oppositional defiant disorder (ODD) is a common mental health concern and is particularly prevalent among children living in poverty-impacted communities. A family strengthening/parent management training (PMT)-based multiple family group (MFG) program entitled, the 4 Rs and 2 Ss for Strengthening Families, focuses on the following family process variables: rules, responsibilities, relationships, respectful communication, social support, and stress. While evidence supports effectiveness of this treatment program, less is known about the specific relationship between the family process variables and mental health outcomes of children and caregivers. The current study examined these relationships among a sample of 287 caregiver/child dyads who participated in a NIMH-funded Type II hybrid effectiveness-implementation study in New York City. Data were analyzed using SPSS 27 and Mplus 8. Results indicated that two of the six family process variables related to one or more child and caregiver mental health outcome. Caregiver stress significantly related to child inattention (b?=?0.034, SE?=?0.01, p?<?0.001), child ODD (b?=?0.053, SE?=?0.02, p?<?0.01), and caregiver depression (b?=?0.049, SE?=?0.02, p?<?0.01). Family rules significantly related to caregiver depression (b?=?0.228, SE?=?0.11, p?<?0.05) over time. Findings point towards the substantial role of caregiver stress in child and caregiver mental health, in addition to the impact of inconsistent discipline with difficulty establishing rules on caregiver depression. Examinations of treatment components in relation to improvements in child and caregiver mental health can guide practitioners towards utilizing models that result in positive therapeutic outcomes and/or making adaptations with added content that has been shown to be effective.

     

The effect of brief delays to reinforcement on the acquisition of tacts in children with autism

We used discrete‐trial training to teach 3 children with autism to tact shapes of countries using 3 levels of reinforcement delay for correct responding: 0 s (immediate delivery), 6 s, and 12 s. Two of the 3 participants acquired the targets more quickly in the immediate‐delivery condition, suggesting that delays as brief as 6 s may be detrimental to learning tacts for some children.     

These Eyes: A Rejoinder to Panagopoulos on Eyespots and Voter Mobilization

Get‐out‐the‐vote mailers using explicit social pressure consistently increase electoral turnout; however, they often generate a negative reaction or backlash. One approach to increase turnout, yet alleviate backlash, may be to use implicit social pressure. An implicit social pressure technique that has shown promise is to display a set of eyes. Researchers contend eyes generate a feeling of being watched, which cues subjects to act in more prosocial ways to demonstrate compliance with social norms. Several studies support this argument, including two voter mobilization studies. The technique has not been widely tested, however, in the political context. In five randomized field experiments, we test the impact on turnout of mobilization mailers using eye displays. We extend previous research by testing for differences in effects between male and female eyes and across political cultures. The effects are substantively and statistically weak at best and inconsistent with previous findings.     

When Middle Really Means “Top” or “Bottom”: An Analysis of the 16PF5 Using Bock's Nominal Response Model

When self-report items with a Likert-type scale include a middle response option (e.g., Unsure, Neither agree nor disagree, or ?), this middle option is assumed to measure a level of the trait intermediate between the high and low response categories. In this study, we tested this assumption in the 16 Personality Factor Questionnaire, Version 5 (16PF5) by fitting Bock's nominal response model in the U.S. and UK standardization samples of the 16PF5. We found that in many cases, the middle option was indicative of higher levels of the latent trait than the ostensibly highest response option. In certain other cases, it was indicative of lower levels of the latent trait than the ostensibly lowest response option. This undermines the use of a simple successive integer scoring scheme where responses in adjacent response categories are assigned scores of 0, 1, and 2. Recommendations for alternative scoring schemes are provided. Results also suggested that certain personality traits, especially neurotic traits, are associated with a tendency toward selecting the middle option.