A COLLATERAL EFFECT OF REWARD PREDICTED BY MATCHING THEORY

Matching theory describes a process by which organisms distribute their behavior between two or more concurrent schedules of reinforcement (Herrnstein, 1961). In an attempt to determine the generality of matching theory to applied settings, 2 students receiving special education were provided with academic response alternatives. Using a combined simultaneous treatments design and reversal design, unequal ratio schedules of reinforcement were varied across two academic responses. Findings indicated that both subjects allocated higher rates of responses to the richer schedule of reinforcement, although only one responded exclusively to the richer schedule. The present results lend support to a postulation that positive reinforcement may have undesirable collateral effects that are predicted by matching theory (Balsam & Bondy, 1983).     

GENDER COMPARISONS OF MATHEMATICS ATTITUDES AND AFFECT

This article reports the complex results of meta-analyses of gender differences in attitudes and affect specific to mathematics. Overall, effect sizes were small and were similar in size to gender differences in mathematics performance. When differences exist, the pattern is for females to hold more negative attitudes. Gender differences in self-confidence and general mathematics attitudes are larger among high school and college students than among younger students. Effect sizes for mathematics anxiety differ depending upon the sample (highly selected or general). One exception to the general pattern is in stereotyping mathematics as a male domain, where males hold much more stereotyped attitudes ( d = -.90). While affect and attitudes toward mathematics are not the only influences on the development of gender differences in mathematics performance, they are important, and both male and female affect and attitudes should be considered in conjunction with other social and political influences as explanations.     

Introduction to the model guidelines for preemployment integrity testing

TheModel Guidelines for Preemployment Integrity Testing Programs are described. These guidelines have implications for both test publishers and test users.Companies may request a copy of the Association of Personnel Test Publisher'sModel Guidelines for Preemployment Integrity Testing Programs by writingModel Guidelines, APTP, 655 Fifteenth Street, N.W., Suite 320, Washington, D.C. 20005.     

Deindividualization,Interpersonal Affect and Productivity in Laboratory Task Groups1

In pursuit of efficiency, formal organizations often create deindividualized, uniqueness-depriving environments. The laboratory experiment reported here tests the effects of another's failure to acknowledge one's individuality on interpersonal affect and willingness to help that person. Undergraduate business students were shown a set of bogus ratings representing their task group leader's perceptions of them on 30 personality traits and 10 occupational interests. The ratings indicated that the group leader believed the subject was extremely similar (non-unique) or somewhat similar (unique) to the typical college student. In a highly individualistic culture another's failure to recognize one's uniqueness should be experienced as unwarranted harm and evoke responses mediated by the negative norm of reciprocity. As expected, subjects receiving non-unique feedback volunteered fewer hours to help the group leader perform his or her duties and were less productive when the group leader was believed to benefit from their effort. In spite of these behavioral effects, attitudes toward the leader were not influenced by the uniqueness feedback. After recognizing limits to generalizability, implications for behavior in deindividualized organizations are discussed.     

Solving the eyewitness problem

Faulty eyewitness testimony is a major source of wrongful convictions. Four solutions are examined to safeguard against mistaken testimony having undue impact: (1) to overturn any conviction based solely on the uncorroborated testimony of a single eyewitness, (2) to require that an attorney be present at any pretrial identification procedure, (3) to allow an expert to testify during the trial about factors of perception and memory that could affect a witness's accuracy, and (4) to have the judge deliver a cautionary instruction to the jury, admonishing them to carefully scrutinize eyewitness testimony, or to educate them about such testimony. Each alternative is discussed within the context of psychological research and legal cases.     

The onset of stuttering following drug overdose

Recently, some attention has been focused on acquired stuttering, disfluencies that begin in adulthood. The nature of acquired stuttering differs in several respects from developmental stuttering. A case of acquired stuttering following drug overdose is presented and contrasted with previously reported cases. The case is noteworthy in that, while many characteristics of acquired stuttering are evidenced, several symptoms associated with developmental stuttering are also observed. The findings are discussed in terms of a possible link between developmental and acquired forms of stuttering.     

A note on interobserver reliability for sequential data

It is well accepted that reliability measures based on simple frequency counts of designated codes are inappropriate for sequential analysis. The stricter point-by-point method, however, is problematic, particularly because it is too strict. It is suggested that a less strict reliability measure based on the number of transitions be used. This method also avoids problems encountered with the point-by-point method and another less stringent method.