Number Versus Contour Length in Infants' Discrimination of Small Visual Sets

This study examined infants' use of contour length in number discrimination tasks. We systematically varied number and contour length in a visual habituation experiment in order to separate these two variables. Sixteen 6- to 8-month-old infants were habituated to displays of either two or three black squares on a page. They were then tested with alternating displays of either a familiar number of squares with a novel contour length or a novel number of squares with a familiar contour length. Infants dishabituated to the display that changed in contour length, but not to the display that changed in number. We conclude that infants base their discriminations on contour length or some other continuous variable that correlates with it, rather than on number.     

Parent Care in the Context of Women's Multiple Roles

This article addresses the multiple roles held by women involved in parent care and the ways in which these roles affect the women's well-being. Research on women's roles (including that of caregiver) has been guided by two opposing perspectives, the scarcity hypothesis and the expansion hypothesis. Findings from our studies of role quality, role combinations, and role spillover have provided abundant evidence that the lives of these women cannot be easilycaptured by either the scarcity or the expansion hypothesis alone.     

Individual Differences, Situational Constraints, and Police Shooting Incidents

Differences in the personal nature of police officers as well as differences among the situational constraints due to assignments are considered in an examination of the occurrences of police involvement in shooting incidents. The Poisson and negative binomial models used in accident research are considered for representing the occurrence of shooting incidents. Data were gathered from incidents in a large metropolitan police department over a 34-month period and used to test the two models. Various analyses indicate a good Poisson fit. Implications of the data are discussed.     

Test-induced anxiety with children.

Thirty-five elementary school children received the WISC, Rorschach, CAT, and Sentence Completion Test in counterbalanced order with a test-test interval of approximately 24 hours. State and trait anxiety measures were assessed immediately prior to and immediately following each test administration. Results indicated that state anxiety measures increased significantly following administration of the more ambigious and school related assessment tests, namely the Rorschach and WISC. In contrast, the more structured, less amorphous CAT and Sentence Completion Test, did not induce any significant changes in state anxiety. In all cases, trait anxiety measures remained relatively stable. Implications for assessment techniques with children were discussed.     

Operant training and generalization of a verbal response form in a speech-deficient child

A subject who spoke essentially in "telegraphic" English, leaving out most articles and auxiliary verbs, was trained to use a particular sentence form that included the articles and verbs to describe a set of standardized pictures. The subject used the trained sentence form to describe the trained pictures, and in addition, use of the sentence form generalized to sets of untrained and novel stimuli. When the trained sentence form was changed, the subject used the new form to describe both training and generalization stimuli. When the original correct form of response was retrained, the subject once again used the trained sentence form to respond to both training and generalization trials.     

The Society for Research in Child and Adolescent Psychopathology

The Society for Research in Child and Adolescent Psychopathology     

Self-Recording of Everyday Life Events: Origins, Types, and Uses

ABSTRACT In this article we review the history of the scientific use of self-recording and conclude that there are three basic methods: ( a ) interval-contingent, in which respondents report on their experiences at regular intervals, ( b ) signal-contingent, in which respondents report when signaled, and ( c ) event-contingent, in which respondents report whenever a defined event occurs. We then discuss the relative merits of these techniques for answering different questions. Finally, we note that self-recording of small events is a departure from the science of psychology as typically practiced, requiring an acceptance of reality as defined by respondents.     

Manufacturing multiple meanings of addiction: Time-limited realities

This article explores how clinicians, patients, and addiction as a youthful science manufacture meaning. Explanations of addictive behavior and addictive disease are viewed as constructs, ideologies, or ways of making meaning. This analysis considers the controversy—over whether addiction qualifies as a disease—to be primarily a matter of epistemology and social perception. Since there is no widespread agreement about what isease means in general, it is not possible to determine whether or not addiction is a disease in particular. The discussion also envisions how treatment for addicted clients might be reformulated as a transactional process utilizing the range of relevant theoretical models as time-limited reframes of addictive reality instead of dichotomizing addiction as either a disease or not.The authors extend thanks to Michelle Bowdler, Nancy Costikyan, Blase Gambino, Teri Loughead, Janet Mann, Peter Monius, Arthur Robbins, and Mitchell Young for their helpful assistance, suggestions, and comments on earlier drafts of this article.     

Extended workdays: Effects on performance and ratings of fatigue and alertness

The present investigation provided a laboratory test of long workdays and served as an initial step in developing a field-test battery that is sensitive to fatigue. Six subjects worked both a 12-h/4-day workweek and an 8-h/6-day week at a data-entry job simulation. Before and after the first and last days of each week, they completed a battery of brief tests measuring cognitive, perceptual-motor, task-sharing, motor, and sensory capacities, as well as subjective feelings. Results suggest that the 12-h/4-day week was more fatiguing than the 8 h/6-day week. In the data-entry job, it was easier to improve performance across the 8 h/6-day week. This result suggested that the fatigue of the 12-h days slowed the rate of improvement across the week. With respect to the test battery, two cognitive tasks (grammatical reasoning and digit addition) and several self-report scales also reflected greater fatigue in the 12-h/4day week. Performance efficiency decreased and reports of drowsiness and lack of concentration increased from the beginning to the end of the final 12-h workday. On the basis of these results, it was concluded that the test battery has utility for the assessment of the potential fatigue effects of long workdays in actual work settings.