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Shaping data collection congruent with experimental hypotheses
K D O'leary1, R N Kent, J Kanowitz
1State University of New York at Stony Brook.
Abstract:
The influence of instructions and feedback from an experimenter on observational recordings of disruptive behavior was evaluated. Four subject-observers recorded four categories of disruptive behavior from videotapes of children in a classroom setting. Two sets of videotapes, labelled "baseline" and "treatment", were matched for rates of disruptive behavior in each category. The observers were told that two target behaviors were expected to decrease and the other two control behaviors were not expected to change during the treatment condition. During observational recording of treatment videotapes, the observers were given positive feedback when they reported decreases in the two target behaviors, and negative feedback when they reported either to change or increases in the two control behaviors. The target behaviors were recorded less frequently by observers, while recordings of control behaviors were unaffected during the treatment phase. These results suggest that contingent feedback to observers should be avoided as a possible source of bias in behavioral recordings.
Insights
Experimenter feedback significantly biased observational recordings of disruptive behavior. Contingent feedback led to underreporting of target behaviors, highlighting potential bias in behavioral research.
Area of Science:
- Behavioral Psychology
- Observational Research Methods
- Child Psychology
Background:
- Accurate behavioral observation is crucial for research and clinical assessment.
- Experimenter influence, including instructions and feedback, can potentially bias observational data.
- Understanding these influences is key to ensuring the validity of behavioral recordings.
Purpose of the Study:
- To investigate the impact of experimenter instructions and contingent feedback on observational recordings of disruptive child behavior.
- To determine if feedback influences observers' recording of target versus control behaviors.
Main Methods:
- Four observers recorded disruptive behaviors from "baseline" and "treatment" videotapes of children.
- Observers received specific instructions about expected changes in target and control behaviors.
- Contingent positive and negative feedback was provided during the "treatment" phase observation.
Main Results:
- Target behaviors were recorded less frequently by observers during the "treatment" phase.
- Recordings of control behaviors remained unaffected by the feedback manipulation.
- The results indicate a clear influence of experimenter feedback on observer recordings.
Conclusions:
- Contingent feedback from experimenters can introduce significant bias into behavioral recordings.
- Researchers should avoid using contingent feedback with observers to maintain data objectivity.
- Findings underscore the importance of unbiased data collection in behavioral science.
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