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Related Experiment Videos

Criterion-oriented grading system for preclinical operative dentistry laboratory course.

V B Dhuru, T S Rypel, W M Johnston

    Journal of Dental Education
    |September 1, 1978
    PubMed
    Summary

    Criterion-oriented grading methods enhance instructor reliability in preclinical operative dentistry compared to traditional methods. Experienced instructors showed significant improvements, suggesting this approach reduces variability in dental student evaluations.

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    Area of Science:

    • Dental Education
    • Operative Dentistry
    • Assessment and Evaluation

    Background:

    • Evaluating instructor reliability is crucial for consistent dental student assessment.
    • Traditional grading methods may introduce variability in subjective evaluations.
    • Criterion-oriented approaches offer a standardized framework for assessment.

    Purpose of the Study:

    • To compare instructor reliability between empirical (traditional) and criterion-oriented grading methods.
    • To assess the impact of instructor experience on grading reliability.
    • To analyze grading consistency for different types of dental restorations.

    Main Methods:

    • 52 dental student preparations (amalgam, inlay, gold foil) were graded by 12 instructors.
    • Instructors were divided into experienced and less experienced groups.

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  • Intraclass correlation coefficients were calculated using one-way ANOVA.

    • Main Results:

    • Criterion-oriented grading generally produced higher intraclass correlation coefficients.
    • Significant increases in correlation were observed for all restorations with experienced instructors (alpha = 0.10).
    • Variability in instructor bias and preparation type influenced correlation degrees.

    Conclusions:

    • Criterion-oriented grading enhances instructor reliability in preclinical operative dentistry.
    • Instructor experience plays a significant role in grading consistency.
    • Standardized grading methods are essential for objective dental education assessment.