Effects of Playing Videogames on Children's Aggressive and Other Behaviors1

Noting the pervasiveness of videogames in American culture, the authors set out to examine the effects that playing videogames has on children. Thirty-one children were matched on sex, randomly assigned to play either a violent (karate) videogame or a nonviolent (jungle vine swinging) videogame, and then observed during free play. The main results were that the children who had played the jungle swing videogame later played more with a jungle swing toy and that the children who played the violent videogame later showed more aggression. The authors interpreted the findings as an indication that young children who play videogames later tend to act similarly to how their videogame character acted.     

A survey of psychologists employed in business and industry

Responses to a questionnaire from 78 members of the Metropolitan New York Association for Applied Psychology provided the following results. A majority of respondents found their first jobs as applied psychologists through informal networking techniques such as personal recommendations or self-starter methods such as sending out resumes. Over 75% of the respondents rated their graduate institutions as good or excellent. However, an increase in the applied focus of these programs was strongly urged, and opinions about graduate faculties were mixed. Obtaining applied work experience or relevant internships was the most often mentioned advice for seekers of similar positions.Appreciation is expressed to Harold Takooshian of Fordham University who first aroused our interests in this topic as an area for research and to Bruce Biskin of AICPA, Dennis Hawver and Tony Zinsser of the Hawver Group, Ted Grant and Michael Secunda of Manufacturers Hanover, and Tom Novak of Young & Rubicam for serving as pre-test subjects for the questionnaire of this study.     

Base-rate effects in category learning: a comparison of parallel network and memory storage-retrieval models

Exemplar-memory and adaptive network models were compared in application to category learning data, with special attention to base rate effects on learning and transfer performance. Subjects classified symptom charts of hypothetical patients into disease categories, with informative feedback on learning trials and with the feedback either given or withheld on test trials that followed each fourth of the learning series. The network model proved notably accurate and uniformly superior to the exemplar model in accounting for the detailed course of learning; both the parallel, interactive aspect of the network model and its particular learning algorithm contribute to this superiority. During learning, subjects' performance reflected both category base rates and feature (symptom) probabilities in a nearly optimal manner, a result predicted by both models, though more accurately by the network model. However, under some test conditions, the data showed substantial base-rate neglect, in agreement with Gluck and Bower (1988b).     

Memory storage and retrieval processes in category learning

The detailed course of learning is studied for categorization tasks defined by independent or contingent probability distributions over the features of category exemplars. College-age subjects viewed sequences of bar charts that simulated symptom patterns and responded to each chart with a recognition and a categorization judgment. Fuzzy, probabilistically defined categories were learned relatively rapidly when individual features were correlated with category assignment, more slowly when only patterns carried category information. Limits of performance were suboptimal, evidently because of capacity limitations on judgmental processes as well as limitations on memory. Categorization proved systematically related to feature and exemplar probabilities, under different circumstances, and to similarity among exemplars of categories. Unique retrieval cues for exemplar patterns facilitated recognition but entered into categorization only at retention intervals within the range of short-term memory. The findings are interpreted within the framework of a general array model that yields both exemplar-similarity and feature-frequency models as special cases and provides quantitative accounts of the course of learning in each of the categorization tasks studied.     

Psychophysiological and behavioral differences as a function of age and Parkinson’s disease

Differences related to age and to specific neurological (Parkinsonian) damage were studied by contrasting, respectively, old (mean age 64 years) and young (27 years) subjects (N=15), and old-normal (N=15) and old-Parkinsonian (N=15) subjects. Both behavioral as well as psychophysiological dependent variables were employed. The behavioral measure was performance on a discrimination learning task, while the psychophysiological measures were based on habituation to a repeated tone stimulus and on a Pavlovian differential conditioning preparation. The behavioral task showed predominantly age-related differences, with the young learning faster. Another age-related difference was interpreted as showing a more insight-like learning process in the young. Response-bias (beta) values did not differ between groups. Age-related differences also emerged more clearly than specific-neurological-damage differences in the psychophysiological data. The older subjects manifested markedly less autonomic conditioning, which was probably due to a lowering of reactivity, as well as the emergence of habituation to the (loud-noise) unconditional stimulus. A correlational analysis of discrimination conditioning also yielded age-related differences. Most notably, reactivity played a greater role in conditioning in the old than in the young subjects. The results illustrated how psychophysiological measures can provide information that complements those provided by behavioral measures.     

SIGNIFICANCE TESTING IN PSYCHOLOGICAL RESEARCH:

Abstract— Empirical surveys show that reports of significance tests appear in the vast majority of articles in psychological research journals and are relied on by both investigators and journal reviewers when making decisions about replication of experiments and submission and acceptance of research reports Evaluation of claims by critics that significance testing is, nonetheless, counterproductive yields suggestions for improvements of prevailing practices, but also the recommendation that decisions about significance testing versus alternative procedures should remain the province of the individual investigator, unconstrained by mandates or prohibitions by publishers or officials of scientific associations. The prime focus for efforts toward improvement of research design and data analysis in psychology and other behavioral sciences should be upgrading the mathematical and general scientific preparation of students preparing for research careers in these fields     

Gender differences in coping: A further test of socialization and role constraint theories

To further test role constraint and socialization theories of gender differences in coping, two studies were conducted to examine coping strategies in individuals occupying similar roles. The relations between coping strategy frequency and effectiveness and between coping strategy use and psychological functioning also were examined. Predominantly Caucasian female and male college students participated in the studies. Results indicated support for both socialization and role constraint theories. Effectiveness and frequency of coping strategy use were moderately correlated. Gender differences in cognitive appraisal varied with dispositional vs. situational assessment. The need for a more integrated model to explain gender differences in coping and implications for existing theories are discussed.     

Deceived versus nondeceived participants' perceptions of scientific and applied psychology

Research examining the possible effects of deceptive research participation on participants' perceptions of psychology has yielded equivocal results. The present study's goal was to clarify the possible effects of participation in mildly deceptive research on participants' impressions of scientific and applied psychology. Participants (N = 112) were randomly assigned to one of six experimental conditions: active groups receiving negative, positive, or no feedback, or passive groups receiving negative, positive, or no feedback. Following participation, participants completed measures of impressions of psychotherapy and psychotherapists, researchers, and instructors. The manipulation did not affect attitudes toward psychology on any of the dependent measures, although gender effects resulted on one measure. Participants in general reported very positive attitudes toward the science and practice of psychology. Recommendations are offered for future research on the effects of more extensive deceptions.