Work and Rest Variables in the Acquisition of Psychomotor Tracking Skill

College students (75 men, 75 women) matched in preliminary performance of 100 sec on the rotary pursuit apparatus were randomly assigned to five experimental groups. Their work/rest ratios, measured in seconds, were: 20/20, 30/30, 60/60, 90/90,120/120. All subjects received 30 min of total practice time after the matching trial. There was a significant practice effect and a significant practice x conditions interaction, but no main effect due to the cycles’ length or number. The decay rate of reactive inhibition (lr) is probably independent of its prior growth level; hence postrest residual lr is proportional to prerest accumulation. Partly because they generated lr in hypothetically greater amounts, women were significantly less proficient on the average than men, and sex interacted with practice. Although males had higher initial and final levels of ability than females, the two sexes’ acquisition curves showed the same rate parameters in our mathematical model.     

African and African American Graduate Students' Racial Identity and Personal Problem-Solving Strategies

This study examined differences on the Racial Identity Attitude Scale (RIAS; Helms & Parham, 1985) and the Problem Solving Inventory (PSI; Heppner, 1981, 1988) among 34 African and 48 African American graduate students. Significant differences were found on the preencounter and internalization scales of the RIAS. There were no group differences in coping ability as measured by the PSI. In addition, the African group experienced an acculturation effect as time in the United States was extended beyond 3 years. These differences in racial identity states have implications for cross-cultural counseling.     

Cumulative integrated electromyographic activity of selected speech-related muscle groups of nonstutterers during massed oral readings

The electromyographic (EMG) integrated amplitude of masseter and laryngeal muscle groups were analyzed during five massed oral readings of 16 nonstuttering adult subjects. Reduction in dysfluencies were observed over the five trials as was a reduction in reading time across trials. Significant decreases in EMG activity across trials were found for the laryngeal, but not the masseter, EMG activity. This suggests that changes in vocal behavior thought to accompany adaptation are reflected in decreases in EMG activity of select speech-related muscle groups.     

Sexual Motives: Cultural,Evolutionary, and Social Psychological Perspectives

Recently, scholars from a variety of disciplines have begun to investigate passionate love, sexual desire, and sexual behavior. Specifically, they have started to ask such questions as: “Why do young men and women engage in sexual liaisons?” “Why do they avoid such encounters?” Unfortunately, in attempting to answer such questions, scholars have generally focused on surveys and experiments within their own disciplines and have accorded scant attention to the discoveries of other disciplines. In this paper, we will begin by discussing three theoretical perspectives that have had the most to say about why young people seek out (or avoid) sex—cultural psychology, evolutionary psychology, and social psychology (where theorists often take a biopsychosocial approach). Then, we will (1) describe the many scales that have been used to assess sexual motives, and (2) review the multidisciplinary data which has been assembled in an attempt to answer the questions as to why people seek out (or avoid) sexual activity. Unfortunately, almost all this research was conducted by Western researchers, investigating the attitudes and behavior of young American men and women, who were heterosexual. (Alas, the wider-ranging data one would wish to consider is as yet only rarely available.) Through this multi-disciplinary synthesis, we hope to demonstrate the impact of culture, social experience, and biological imperatives in shaping young men’s and women’s motives for engaging in sexual encounters and provide a sort of “encyclopedia” of sexual motives measures and research for future scholars.     

ADHD and aggression as correlates of suicidal behavior in assaultive prepubertal psychiatric inpatients

Forty-three psychiatrically hospitalized prepubertal children were assessed regarding their assaultive and suicidal behaviors. These children were subsequently classified into two groups, assaultive/suicidal (AS) and assaultive-only (AO). AS children had higher aggression and suicidal-scale scores, but not higher depression scores, and were more likely to be diagnosed with ADHD. ADHD, child's aggression, and maternal depression and state anger accounted for 33% of the variance in suicidal-scale scores. Aggression mediated the relation between ADHD and suicidal behavior. Differences in symptom pattern between these two subtypes of assaultive inpatient children are interpreted as a basis for distinctive screening procedures.     

Posttraumatic Stress Disorder Symptom Structure in Chinese Adolescents Exposed to a Deadly Earthquake

This present study examined the structure of posttraumatic stress disorder (PTSD) symptoms in a large sample of Chinese adolescents exposed to a deadly earthquake. A total of 2,800 middle school students aged 12 to 18 years participated in the study 6 months after the “Wenchuan Earthquake”. Results of confirmatory factor analysis indicated that a five-factor intercorrelated model composed of intrusion, avoidance, numbing, dysphoric arousal, and anxious arousal, fit data significantly better than both the four-factor numbing model King et al. (Psychological Assessment 10:90–96, 1998) and the four-factor dysphoria model Simms et al. (Journal of Abnormal Psychology 111:637–647, 2002). Further examination of the external convergent and discriminant validity revealed that except for the dysphoric arousal factor, the remaining four PTSD factors yielded significantly different correlations with external measures of anxiety vs. depression. The findings add to the limited literature on the factor structure of PTSD in youths and on the five-factor PTSD model. In addition, they provide more detail into the latent psychopathological processes of PTSD, and inform the forthcoming DSM-5.     

Development and Validation of the Parental Authority Questionnaire – Revised

Baumrind's conceptualization of parenting style has influenced research and theorizing about child-rearing for more than 30 years, yet few clinical applications of this work have been realized. The purpose of this study was to examine the psychometric properties of a parenting style measure, the Parental Authority Questionnaire – Revised (PAQ-R). This project furthered the development and validation of the instrument by examining the factor structure, internal consistency, test-retest reliability, and convergent validity of the PAQ-R in a large, ethnically and socioeconomically diverse sample. The factor structure and reliability of the PAQ-R was modest, but generally within the acceptable range. Specifically, the Authoritarian and Permissive subscales of the PAQ-R had modest reliability and convergent validity; these PAQ-R subscales correlated with relevant subscales of the Parenting Scale and the Parent–Child Relationship Inventory. By contrast, the Authoritativeness subscale had poorer psychometric properties when used in lower SES, primarily African American populations. While African American mothers in the sample reported being more Permissive than did Caucasian mothers, these differences disappeared after controlling for income and maternal education. By contrast, African American mothers continued to report more Authoritarian attitudes even after controlling for income and maternal education.     

Word production deficits in schizophrenia

Fronto-cerebellar circuitry is implicated in word production. Data suggest that the cerebellum is involved in word search, whereas the prefrontal cortex underlies the selection of words from among competing alternatives. We explored the role of search and selection processes in word production deficits in schizophrenia patients. In Experiment 1, patients were impaired in a verb generation task under both high and low selection conditions but were more impaired in the high selection condition. In Experiment 2, when the difficulty level of search and selection conditions was equated in a word stem completion task, patients were only impaired in the search condition. Word search deficits underlie word production problems in schizophrenia, and may involve fronto-cerebellar dysfunction.     

Risk Orientation,Risk Exposure,and Policy Opinions: The Case of Free Trade

This research offers a general framework for thinking about how individual disposition towards risk influences public policy opinions. Affinity for or aversion to risk is, in part, a stable personality characteristic that interacts with risk and reward messages in complex policy debates. We examine the implications of this for public opinions about free trade with extensions to immigration policy. We argue and find that opinions about policy depend jointly upon one's exposure to potential gains or losses and one's risk orientation. The findings have implications for crafting and framing public policies because they highlight how individual characteristics are likely to shape the public response to policy proposals. Our findings suggest that there may be limits, in the aggregate, to the degree to which elites can alter the level of support for policies through framing or through offering risk‐mitigating policy provisions.