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A constituent comparison model of a picture-first verification task
1Department of Psychology, University of Manitoba, R3T 2N2, Winnipeg, Manitoba, Canada.
Memory & Cognition
|November 9, 2013
Summary
Critiques of a verification model showed task-dependent parameter estimates. Re-analysis using a comprehensive model revealed comparable comparison operation estimates across sentence-picture verification tasks.
Area of Science:
- Cognitive Psychology
- Psycholinguistics
- Human Sentence Processing
Background:
- Carpenter and Just's (1975) verification model proposed a comparison parameter.
- Tanenhaus, Carroll, and Bever (1976) critiqued the model, noting task-dependent parameter estimates.
- Estimates for picture-first verification tasks were higher than for sentence-first tasks.
Purpose of the Study:
- To re-evaluate the comparison parameter estimates in sentence-picture verification tasks.
- To investigate the impact of task structure on model parameter estimation.
- To determine if a more comprehensive model resolves discrepancies in parameter estimates.
Main Methods:
- Analysis of sentence-picture verification task data.
- Application of a comprehensive verification model.
- Comparison of parameter estimates between picture-first and sentence-first tasks.
Main Results:
- Initial estimates of the comparison parameter varied significantly between task types.
- Picture-first task estimates were based on a limited subset of trials (sentences with 'above').
- A comprehensive model yielded comparable comparison operation estimates for both picture-first and sentence-first tasks.
Conclusions:
- The discrepancies in parameter estimates were an artifact of the previous analysis method.
- A comprehensive model provides more robust and consistent estimates of the comparison operation.
- Task structure does not inherently lead to different comparison operation efficiencies in verification.
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