Extinction and recovery of the discriminative stimulus effects of nicotine (0.3 mg/kg) was investigated with a devalued food reinforcer (rats sated). Sixteen rats were trained in a counterbalanced one manipulandum (nose-poke) drug discrimination procedure with the roles of nicotine and saline counterbalanced as S[superscript D] and S[superscript…

The free play of 5 black preschool Head Start children was observed. The variables manipulated in the study were delayed instructions and reinforcement for play with selected toys, and specific versus general instructions; the correspondence between the adult's instructions and reinforcement to the children's play was assessed. The data indicated…

As a result of findings of a previous study, this study, which sought to program preschool subjects to wait one minute for reinforcement, used pause-building procedures before delay conditions were started. The children, 3- to 5-year-olds, were designated either Baseline (control) subjects (n=3) or Programmed (experimental) subjects (n=5). Though…

This study investigated the effects of between-trials variability on the alternation discrimination of retardates. Brightness and size were variable between trials and irrelevant. Initial response outcome and mental age were also independent variables. Neither between-trials variability nor mental age produced a significant main effect, while the…

Research supported in part by National Institute of Mental Health, Project Grant MH-14914.

This study tests the contention that a reinforcing agent's manner of administering rewards and punishments is construed by his associates as revealing his margin of freedom, and that associates are more attentive to cues concerning a reinforcing agent's dispositional qualities, and more inclined to ingratiate themselves to him, when he employes…

The bibliography on learning in mentally handicapped persons is divided into the following topic categories: applied behavior change, classical conditioning, discrimination, generalization, motor learning, reinforcement, verbal learning, and miscellaneous. An author index is included. (KW)

To differentiate behaviorally, success-strivers and failure-avoiders within a group of educable mentally handicapped, two experiments were conducted. The effects of learning potential status (gainers, nongainers, high scorers) and motivational style (success strivers, failure avoiders) on discrimination learning when reinforcement was varied was…

A nursery school teacher received three types of training in self-observation skills, which were compared with regard to their effects on the accuracy of the self-observations. Minimal training consisted of a brief description of the behaviors to be recorded. The feedback condition incorporated daily information about the accuracy of the…

In this article infant operant conditioning studies are grouped according to distinct procedures: free operant; discrete trial with one discriminative stimulus; discrete trial with two or more discriminative stimuli; controlled operant with two or more discriminative stimuli; and unrestricted operant with two or more discriminative stimuli.…

This book is a compilation of literature and research concerning how children learn. The first chapter is a historical introduction to research in learning that summarizes the major developments of the last 100 years and relates these developments specifically to children's learning. The main body of the text is divided into six major topics: (1)…