EFFECTS OF POINT‐LOSS PUNISHERS ON HUMAN SIGNAL‐DETECTION PERFORMANCE

Three experiments using human participants varied the distribution of point‐gain reinforcers or point‐loss punishers in two‐alternative signal‐detection procedures. Experiment 1 varied the distribution of point‐gain reinforcers for correct responses (Group A) and point‐loss punishers for errors (Group B) across conditions. Response bias varied systematically as a function of the relative reinforcer or punisher frequencies. Experiment 2 arranged two conditions — one where an unequal ratio of reinforcement (5:1 or 1:5) was presented without punishment (R‐only), and another where the same reinforcer ratio was presented with an equal distribution of point‐loss punishers (R+P). Response bias was significantly greater in the R‐only condition than the R+P condition, supporting a subtractive model of punishment. Experiment 3 varied the distribution of point‐gain reinforcers for correct responses across four unequal reinforcer ratios (5:1, 2:1, 1:2, 1:5) both without (R‐only) and with (R+P) an equal distribution of point‐loss punishers for errors. Response bias varied systematically with changes in relative reinforcer frequency for both R‐only and R+P conditions, with 5 out of 8 participants showing increases in sensitivity estimates from R‐only to R+P conditions. Overall, the results indicated that punishers have similar but opposite effects to reinforcers in detection procedures and that combined reinforcer and punisher effects might be better modeled by a subtractive punishment model than an additive punishment model, consistent with research using concurrent‐schedule choice procedures.     

A Primer of the Values Implicit in Counseling Research Methods

The author attempts to answer 5 related questions: What are implicit values? Why are these values often considered problematic to traditional science? Why are such values necessary to research? What are the main values of traditional methods in psychology? What are the implications of a value‐laden science?     

Assessment of Discipline Styles Among Parents of Preschool Through School-Age Children

The Parenting Scale (D.S. Arnold, S.G. O'Leary, L.S. Wolff, & M.M. Acker, 1993) is a self-report measure of parenting practices that has demonstrated sound psychometric properties when used with the parents of young children. However, less is known about the use of this measure with parents of older children. This study was conducted to examine the psychometric properties and factor structure of the Parenting Scale in a normative sample of parents with children 2–12 years old. Findings reveal that the psychometric properties remain strong among the parents of elementary school children, with minimal differences in scores as a function of children's age. However, the data suggest that the factor structure may differ from that proposed by the authors. Although statistically significant correlations with ADHD symptoms were revealed, the magnitude of these correlations was relatively small. Suggestions for future research and clinical use of this scale are discussed.     

How Separable Are Spirituality and Theology in Psychotherapy?

The authors respond to D. A. Helminiak's (2001) article “Treating Spiritual Issues in Secular Psychotherapy.” They focus particularly on Helminiak's argument for secular spirituality (whether spirituality can be independent of theology/religion) and his inherent biases in discussing the nature and existence of spirituality. The authors argue that all spiritual conceptions have theological implications—and thus a theology, broadly defined—and that theology, in this sense, pervades the theory and practice of all psychotherapists, whether or not they are religious.     

Resilient,Overcontrolled, and Undercontrolled Personality Types: Issues and Controversies

Personality types refer to common or typical configurations of the dispositional attributes that define the individual. Research over the last 20 years has identified a set of three replicable personality types: resilient, overcontrolled, and undercontrolled personalities. Resilient individuals are characterized by self-confidence, emotional stability, and a positive orientation toward others. Overcontrolled individuals are emotionally brittle, introverted, and tense, whereas undercontrolled individuals are disagreeable and lack self-control. In this article, we provide a brief history of current research on the three personality types and identify key areas of controversy. We also outline several directions for future research and discuss the importance of maintaining both attribute- and person-centered perspectives in contemporary personality psychology.     

Gender differences in theories of adolescent sexual activity

This was a study of 1478 adolescents who attended ten private schools located in different areas of this country. The purpose was to determine which concepts from four theories of deviance were useful in explaining male and female sexual intercourse. The sample was 73% White, 6% Chicano, 5% Black, 3% Asian, and 12% other minorities, and was comprised of 1114 females and 364 males. Bivariate analyses showed that the majority (15 of the 21 factors for both males and females) of factors examined were significantly correlated with frequency of sexual intercourse. Few gender differences were observed, and hierarchical regression procedures revealed that the strongest predictor of both male and female sexual intercourse was differential peer association, accounting for 33% of the variance (48% explained) among males and 27% of the variance among females (44% explained).The authors wish to express their appreciation to Dr. Ken Millar for the supportive resources to complete this study, and to the reviewers at Sex Roles for their comments on an earlier draft.     

Plaster or Plasticity: Are Adult Work Experiences Associated with Personality Change in Women?

ABSTRACT The present study tested whether work experiences were associated with personality change across two periods of adulthood (age 21 to 27 and 27 to 43) in a longitudinal sample of women ( N = 81). Two competing theoretical perspectives were tested: the plaster theory, which claims that personality does not change after age 30, and the plasticity theory, which claims that personality can change at any time in adulthood. Evidence was found for both correlational consistency of personality in adulthood and for the socialization effect of work on personality change. Work experiences were not associated with personality change in young adulthood but were associated with changes between young adulthood and midlife. In the period from age 27 to age 43 women who worked more became more agentic, and women who were more successful in their work became both more agentic and more normadhering. This pattern of associations between personality change and work experience provided support for the plasticity model of personality change.     

Toward a Unified Model of Lexical Acquisition and Lexical Access

Much effort has gone into constructing models of how children segment speech and thereby discover the words of their language. Much effort has also gone into constructing models of how adults access their mental lexicons and thereby segment speech into words. In this paper, I explore the possibility of a model that could account for both word discovery by children and on-line segmentation by adults. In particular, I discuss extensions to the distributional regularity (DR) model of Brent and Cartwright (1996) that could yield an account of on-line segmentation as well as word discovery.