The calibration and resolution of confidence in perceptual judgments

Carleton University, Ottawa, Ontariot Canada Confidence rating based calibration and resolution indices were obtained in two experiments requiring perceptual comparisons and in a third with visual gap detection. Four important results were obtained. First, as in the general knowledge domain, subjects were underconfident when judgments were easy and overconfident when they were difficult. Second, paralleling the clear dependence of calibration on decisional difficulty, resolution decreased with increases in decision difficulty arising either from decreases in discriminability or from increasing demands for speed at the expense of accuracy. Third, providing trial-by-trial response feedback on difficult tasks improved resolution but had no effect on calibration. Fourth, subjects can accurately reportsubjective errors (i.e., trials in which they have indicated that they made an error) with their confidence ratings. It is also shown that the properties of decision time, conditionalized on confidence category, impose a rigorous set of constraints on theories of confidence calibration.     

Working with Lesbians,Gays, and Bisexuals: Addressing Heterosexism in Supervision

Heterosexism is a form of multicultural bias that has the potential to harm both clients and supervisees. Supervisors are encouraged to examine their own heterosexist lens as a first step in providing a safe environment in which supervisees can challenge their own heterosexism. The issue of heterosexism is first discussed from an ethical vantage point. The second section of the article examines four facets of heterosexism (discrimination, lack of knowledge, stereotyping, and insensitivity) and how they might be exhibited by the supervisor in the supervision arena. Special topics discussed in this section include: the possible consequences of “coming out” in the supervisory context; the presence of heterosexism in the foundational family systems theory; the need for recognition of the special family characteristics of lesbians, gays, and bisexuals; the value of personal and professional relationships with persons who are gay, lesbian, and bisexual; common heterosexist stereotypes and research that refutes them; and the use of language. The final section of the article offers suggestions for working with supervisees around these issues.     

THE EFFECTS OF CONTINGENT AND NONCONTINGENT ATTENTION ON SELF-INJURY AND SELF-RESTRAINT

Self-restraint and self-injurious behavior (SIB) are two responses that can sometimes be members of the same functional response class (i.e., maintained by the same contingency). In such cases, a single treatment should be effective for both responses. In this investigation, we examined the effects of providing attention (the presumed reinforcer) both noncontingently and contingent upon either SIB or self-restraint. Results were consistent with our hypothesis that both responses were maintained by attention and suggested that noncontingent reinforcement was a potentially effective treatment.