Delayed reinforcement as an indiscriminable contingency in verbal/nonverbal correspondence training

We investigated the programming of generalization and maintenance of correspondence between verbal and nonverbal behavior in a preschool setting. Four children participated in a series of multiple-baseline designs. In Experiment 1, delayed reinforcement of verbal behavior effectively controlled maintenance of correspondence with previously trained responses and also resulted in generalization of correspondence to one untrained response. As the latter effect was limited, Experiment 2 was a further assessment of the effects of delayed reinforcement of generalization of correspondence to untrained responses, and consistent generalization was shown. Experiment 2 also showed that generalization, if lost, could be recovered through use of "booster training," in which the original contingencies were reinstated for a brief period. Experiment 3 provided replications, with two additional children, of the effects of delayed reinforcement on maintenance of correspondence. Results are discussed in terms of using delayed reinforcement as an indiscriminable contingency.     

FEMALE PARTNERS OF BISEXUAL MEN What They Don't Know Might Hurt Them

Individual interviews with 350 behaviorally bisexual men aged 18–30 revealed that 71% of their female sexual partners and 59% of their steady female sexual partners in the past 6 months had not been aware of their homosexual activity. Rates of nondisclosure were higher for African-American than White men. Compared to nondisclosers, men who disclosed to all their female partners were less self-homophobic and perceived their friends, families, and neighbors as more accepting of their homosexual behavior. Compared to men who had disclosed, the nondisclosers had more female partners and used condoms less consistently with women.     

Holland's theory: Stability of avocational interests

The generality and stability of Holland's vocational choice model was tested by examining preference for avocational (leisure) activity. Based on their responses to the Strong Vocational Interest Blank, college students were placed into one of the six Holland groups. They also indicated preferred leisure activities on questionnaires that were administered at a 9-year interval. Six hypotheses were developed relating Holland groups to particular types of avocational behavior. For example, it was predicted that the Artistic group would be more active in cultural affairs and that the Enterprising group would prefer reading political and economic magazines. The initial test of these hypotheses during late adolescence confirmed five of the six predictions. A follow-up 9 years later confirmed all six hypotheses. These results provide some support for the notion that individuals self-select a variety of situations. Also, the relationships between Holland scales and leisure activity and possible implications for the vocational choice model are discussed.     

Constraints have different concurrent effects and aftereffects on variability

Three experiments showed that constraints imposed early in learning have different effects on variability when they are in effect and after they are removed. Task constraints, which determine how something can be done, limited the number of possible responses in a computer game. Variability constraints, which specify how differently something must be done, required that each response differ from some number of prior responses. Less restrictive constraints (Experiments 1 and 2) produced higher variability during the constraints. More restrictive constraints (Experiments 2 and 3) led to higher variability after the constraints were relaxed. The authors discuss how these differences reflect strategies acquired during the constraints (default rules) and modified in closely related ways (exception rules) afterward.     

Kierkegaardian vision and the concrete other

The ethics expressed in Kierkegaard’s Works of Love has been subject to persistent criticism for its perceived indifference to concrete persons and failure to attend to the other in their individual specificity. Recent defenses of Works of Love have focused in large part on the role of vision in the text, showing the supposed “blind” empty formalism of the emphasis on the category of “the neighbor” to serve a normative model of seeing the other correctly. However, when this problem is viewed in the broader context of Kierkegaard’s phenomenology of moral vision, two further, thus far unanswered, problems emerge: How can we see the other and the moral demand they represent at the same time, and how can we see the other and our own condition at the same time? This paper draws on other Kierkegaardian texts to show how Kierkegaard’s model of moral vision allows for the simultaneity in vision necessary to overcome these challenges.     

Effects of practice on variability, effects of variability on transfer

Five experiments examined how practice early in skill acquisition affected variability and accuracy during skill retention (Experiments 1-5) and skill transfer (Experiments 3, 4, 5). Lag constraints required that each path from apex to base of a computer-generated pyramid display differ from some number (the lag) of immediately prior paths. Location constraints specified end points at which paths must exit the pyramid. In all experiments, an early optimal period for acquiring a variability level was identified. Both low and high levels of variability were sustained during retention; high levels facilitated transfer. The results suggest that (a) early practice that requires high variability sensitizes learners to changes in condition and (b) such perception-performance links facilitate transfer by activating appropriate alternative strategies/schema or initiating their construction.