Related Experiment Video
Updated: May 31, 2026
10:17
Improving Student Outcomes with an Adaptable Molecular Cloning Course-Based Undergraduate Research Experience
Published on: November 15, 2024
Collaborative testing: the effect of group formation process on overall student performance
Rita Nafziger1, Jamie K Meseke, Christopher A Meseke
1Palmer College of Chiropractic.
The Journal of Chiropractic Education
|June 17, 2011
Summary
Randomly assigned groups outperformed student-selected groups on neuroanatomy quizzes, but overall course performance showed no significant difference. This suggests collaborative testing effectiveness is independent of group formation method.
Area of Science:
- Neuroscience Education
- Medical Education
Background:
- Increased focus on preparing students for high-stakes exams necessitates exploring alternative content delivery and assessment methods.
- Factors within the learning environment can significantly impact student performance and program progression.
Purpose of the Study:
- To examine the impact of group determination method (random assignment vs. student selection) on student performance in a neuroanatomy course.
- To evaluate student outcomes within a collaborative testing environment.
Main Methods:
- Compared the course performance of two cohorts: one with randomized grouping (n=80) and another with student-selected grouping (n=82).
- All students participated in weekly collaborative quizzes and individual unit exams.
- Mean scores for quizzes and exams were statistically analyzed.
Main Results:
- Randomized groups scored significantly higher on overall quizzes compared to student-selected groups (p < .05).
- No significant difference in overall exam scores was observed between the two grouping methods (p > .05).
- While overall group performance differed, no specific assessment pattern emerged consistently across all evaluations.
Conclusions:
- The collaborative testing paradigm is a valuable learning tool, irrespective of group formation strategy.
- No significant difference in overall course performance was found between randomly assigned and student-selected groups.
- Random grouping may promote broader individual proficiency, while self-selection might lead to material division among students.
Related Concept Videos
01:37Social Loafing
Another way in which a group presence can affect performance is social loafing—the exertion of less effort by a person working together with a group. Social loafing occurs when our individual performance cannot be evaluated separately from the group. Thus, group performance declines on easy tasks (Karau & Williams, 1993). Essentially individual group members loaf and let other group members pick up the slack. Because each individual’s efforts cannot be evaluated, individuals become less...
01:04Social Facilitation
Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
01:29Theory of Attribution II: Kelley's Covariation Theory
Attribution theory plays a crucial role in social psychology, helping to explain how individuals interpret the causes of behavior. One prominent model within this field is Harold Kelley's covariation theory, which provides a systematic approach to determining whether internal traits or external circumstances drive a person's actions. The model posits that individuals rely on three key types of information—consensus, consistency, and distinctiveness—to make these judgments.Consensus: Comparing...
01:09Comparing Experimental Results: Student's t-Test
The t-test is a statistical method used to compare the sample mean with a population mean or compare two means from two data sets. The test statistic is calculated from the standard deviation, mean, and number of measurements in the data set at a selected confidence interval and then compared to a table of critical values at this confidence level. If the test statistic is smaller than the critical value, the null hypothesis is accepted. In this case, we state that the difference between the...
01:25Impact of Individuals on a Group
In social psychology, the interplay between individuals and groups is a central concern, particularly regarding how individual actions and characteristics influence group processes and outcomes. While much research emphasizes the group's power in shaping individual behavior, it is equally significant to understand how individuals contribute to the functioning, development, and success of groups.Individual Roles in Group Productivity and Decision-MakingIndividuals are not passive participants in...
02:01Group Design
The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between the two are due to...