Errors in the quantification of uncertainty: A product of heuristics or minimal probability knowledge base?

The use of intuitive heuristics (e. g. representativeness and availability) has been put forward as an explanation for peoples' assignment of probabilities (Tversky and Kahneman, 1971). This phenomenon is seen as robust since experts as defined by education (professional psychologisis), despite advanced training in statistics and methodology, rely on the same heuristics as novices (lay people). Both experts and novices, as defined by education, were studied in a series of experiments and further classified as experts and novices according to their probability knowledge base, prior to receiving (or not) a brief (15-minute) training session. Immediately following training, subjects completed a probability test which consisted of ten Tversky and Kahneman (e. g. 1974) problems. The training significantly increased the number of problems correctly solved on the probability test and eliminated the expert/novice education classification. The results of a follow-up test 5 weeks after the experiment indicated that the training group maintained its superior performance. It is proposed that failure to use proper methods of probability assignment may not be due to intrinsic human inference biases or heuristics, but is a result of a minimal probability knowledge base.     

Children’s competitive behavior: A challenging alternative

The effect of challenge on the cooperative and competitive behavior of 120 urban American children was assessed using two experimental game apparatuses, one of which provided a challenging cooperative response. Significantly more cooperation was observed when the subjects were presented with a challenging cooperative response. In addition, a reliable age effect was found indicating that the older subject group (10–12 years old) was more cooperative than the younger two age groups (5–7 and 8–10 years old). Finally, a significant game condition x order interaction was discovered suggesting that under some conditions the order in which the games were played affected the degree of subject cooperation. Results are related to a theory of competence motivation. It is argued that cooperation among American children may be increased if the task involves the presence of challenge. A portion of this research was presented at the biennial meetings of the Society for Research in Child Development, Detroit, Michigan, 1983.     

From eating disorders to women's situations: Extending the boundaries of psychological inquiry

This paper seeks to extend feminist critiques of the prevalent psychiatric approaches to the eating disorders. It also includes a critique of feminists' writings that make assumptions similar to, and hence suffer from some of the same theoretical weaknesses as, the prevalent clinical literature. The main purpose is to contribute to the development of a social-historical approach to the study of the relentless pursuit of thinness among women. The social-historical approach is contrasted with individualistic psychological, family systems and multidimensional accounts of anorexia nervosa and bulimia. Potential directions suggested by feminist and social-historical analyses of the relentless pursuit of thinness among women are briefly described.     

A further empirical evaluation of neurolinguistic primary representational systems (PRS)

Neurolinguistic programmers claim that individuals have preferred (primary) representational systems. These may be auditory, visual or kinesthetic and determine how a person views/deals with the world. Systems can be identified by observation of eye movements. In workshops programmers demonstrated strong associations between eye movements following questioning and types of questions and eye movement categories (assumed to identify systems) and other assessments of systems. Studies have evaluated these ‘workshop’ associations and found little support for their general occurrence. In these studies, it is possible that eye movements following questioning were influenced by artifacts which influence predicted association between these and other variables. An attempt was made to exclude these artifacts in this study. Except for subjects who had attended neurolinguistic workshops, results supported those obtained elsewhere. Possibly, associations in workshops occur as a result of expectational-contextual variables.     

Employment demographics and attitudes that predict preferences for alternative pay increase policies

A survey of 942 university staff employees shows that performance and cost of living are preferred over seniority as criteria upon which to base pay increases. Multiple regression analysis reveals that preferences for performance-based pay increases are most strongly related to perceptions that merit pay does not decrease co-worker cooperation, perceptions that performance differences exist among co-workers, employment in white collar jobs, and never having belonged to a union. Preferences for seniority-based and cost of living-based pay increases are most strongly related to the perceived need for a union, perceptions that merit pay reduces cooperation, education level, and gender. In addition, preferences for seniority-based pay increases are related to years of service.An earlier version of this paper was presented at the 1989 meetings of the Midwest Academy of Management.     

Is Pregnancy Necessary? Feminist Concerns About Ectogenesis

To what extent are women obliged to be child-bearers? If reproductive technology could offer some form of ectogenesis, would feminists regard it as a liberating reproductive option? Three lines of reproductive rights arguments currently used by feminists are applied to ectogenesis. Each fails to provide strong grounds for prohibiting it. Yet, there are several ways in which ectogenesis could contribute to women's oppression, in particular, if it were used to undermine abortion rights, reinforce traditional views of fertility, increase fetal rights in pregnancy, and perpetuate the unequal distribution of scarce medical resources. A re-thinking of women's relationship to pregnancy is needed in order to challenge ectogenetic research.     

Reliability of job evaluation: Differences across sex-typed jobs

Recent work has questioned whether a single job evaluation instrument can reliably measure jobs from different job families. To test this, a generalizability study was done to determine the reliability of three job evaluation instruments: one for male-dominated jobs, MIMA-Shop, one for female-dominated jobs, MIMA-office and one which evaluated both types, FES. Initial results indicated that the latter instrument suffered no loss in reliability, and that all three instruments were equally highly reliable. A second analysis evaluated the reliability of the FES for male-dominated jobs separately from the reliability of the FES for female-dominated jobs. These results indicated no significant difference in reliability for male-dominated jobs and for female-dominated jobs. Implications of these findings were discussed.A previous version of this paper was presented at the 95th Annual Convention of the American Psychological Association at New York City, August 1987.