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Related Experiment Video

Updated: Jun 15, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning

Published on: August 29, 2025

Reliability and validity of a Tutorial Group Effectiveness Instrument.

Veena S Singaram¹, Cees P M Van Der Vleuten, Henk Van Berkel

¹Department of Medical Education, College of Health Sciences, University of KwaZulu-Natal, PBX Congella 4013, South Africa. singaram@ukzn.ac.za

Medical Teacher

|March 12, 2010

Summary

This study validated an instrument to measure tutorial group effectiveness in problem-based learning (PBL). The tool provides feedback on student behaviors impacting learning group success.

Related Experiment Videos

Last Updated: Jun 15, 2026

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning

Qualitative and Quantitative Validation of Tools with Rating Scales Aimed at Assessing the Quality of University Service-Learning

Published on: August 29, 2025

Area of Science:

Educational Psychology
Medical Education Research

Background:

Tutorial group effectiveness is crucial for successful problem-based learning (PBL).
Dysfunctional groups negatively impact student learning outcomes in PBL environments.

Purpose of the Study:

To establish the reliability and validity of a novel instrument designed to assess tutorial group effectiveness in PBL.
To provide a quantitative measure for evaluating group dynamics within PBL settings.

Main Methods:

Instrument development based on Slavin's motivational and cognitive factors.
Confirmatory Factor Analysis (CFA) to assess construct validity.
Generalizability studies and computation of alpha coefficients for reliability and homogeneity.

Main Results:

A 19-item, three-factor model demonstrated a good fit with the data.
High alpha coefficients indicated strong internal consistency for each factor.
Approximately 9-10 student responses are required for reliable tutorial group-level data.

Conclusions:

The validated instrument can offer valuable diagnostic feedback to educators and students.
It identifies specific student behaviors that either enhance or impede tutorial group effectiveness.
This tool supports the improvement of learning experiences in problem-based learning settings.