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Biomedical subjects

K C Wells

Publications and source records attributed to K C Wells.

30 records · Page 2Linked to original sources
PubMed1979

Parent behavioral training: an analysis of the relationship among multiple outcome measures.

The purpose of the present study was to examine the relationship among three types of outcome measures that have been employed to evaluate parent behavioral trainining: observational data collected by independent observers, parent-collected data, and parent-completed questionnaires. Previous research suggests that all three measures yield positive outcome data; however, a correlational analysis has not been performed to determine if the subjects who demonstrate the largest (smallest) change on one measure demonstrate the largest (smallest) change on the other measures. The present study undertook such a correlational analysis. Subjects were 20 young clinic-referred children and their mothers. Treatment consisted of a standardized parent training program to modify child noncompliance. All three outcome measures (observational data, parent-collected data, and questionnaire data) indicated that therapy was effective. A correlational analysis performed on the outcome measures indicated a number of significant relationships for dependent variables within the observational data and within the questionnaire data; however, there were no significant relationships across the three outcome measures. Although different outcome measures may yield similar conclusions about the effectiveness of parent behavioral training, the results suggest that any one subject, relative to other subjects, does not demonstrate uniform degrees of change across the three outcome measures. Explanations for the findings, as well as their implications, are discussed.

Behavior Therapy↗
PubMed1977

Effects of a verbal warning and overcorrection on stereotyped and appropriate behaviors.

In Experiment I, the effects of a verbal warning, such as is used in Overcorrection, delivered contingently on the stereotyped mouthing behavior of two autistic/retarded children were examined. A multiple baseline design across subjects was used. The results indicated that the mouthing of one child was reduced to a near-zero level and mouthing of the second child was moderately reduced. Appropriate toy play and inappropriate object manipulation failed to show systematic changes in occurrence when mouthing was decelerated. In Experiment II, the same subjects and experimental design were used to assess the effects of a positive practice Overcorrection procedure delivered contingent on mouthing behavior. Overcorrection reduced the mouthing of both subjects. There were no systematic changes in inappropriate object manipulation but one subject did demonstrate an increased occurrence of appropriate toy play. In addition, this subject often engaged in aggressive/escape behaviors during Overcorrection, suggesting that the procedure was aversive to him.

Aggression↗
PubMed1977

Effects of a procedure derived from the overcorrection principle on manipulated and nonmanipulated behaviors.

Positive practice overcorrection has been shown to be effective in reducing stereotypic self-stimulatory behaviors displayed by retarded and autistic individuals. In addition, the procedure also may increase the occurrence of appropriate behavior through intensive practice. In the present study, several stereotypic and one appropriate behavior (appropriate toy play1 displayed by two autistic children were measured before and during treatment by a positive practice in appropriate toy play overcorrection procedure. Overcorrection was introduced for each of the targeted inappropriate behaviors in sucession for both children. Results showed that overcorrection reduced all stereotypic behaviors displayed by both children. In addition, one subject displayed marked increases in the behavior practiced during overcorrection, appropriate toy play, relative to its baseline rate of occurrence. The results indicate that for some individuals, overcorrection may be effective in teaching and motivating appropriate forms of behavior as well as in reducing stereotypy.

Autistic Disorder↗
PubMedDate not supplied

The effects of social punishment on noncompliance: a comparison with timeout and positive practice.

The effects of social punishment, positive practice, and timeout on the noncompliant behavior of four mentally retarded children were assessed in a multitreatment withdrawal design. When programmed, the experimental procedure occurred contigent on non-compliance to experimenter-issued commands. Commands were given at 55-sec intervals throughout each experimental session. The results showed (1) lower levels of noncompliance with social punishment than with the positive-practice or timeout conditions, and (2) that relatively few applications of social punishment were required to obtain this effect. The advantages of social punishment over other punishment procedures, considerations to be made before using it, and the various aspects of the procedure that contribute to its effectiveness were discussed.

Behavior Therapy↗