Method of recruiting subjects and performance on cognitive tests

Area of Science:

• Psychology
• Cognitive Science
• Research Methodology

Background:

• College students are frequent participants in psychological studies.
• Effective subject recruitment is crucial for research validity.
• Understanding recruitment impacts on performance is essential.

Purpose of the Study:

• To assess the effects of three recruitment methods on student performance in laboratory tests.
• To compare monetary incentives, course credit incentives, and mandatory participation.
• To investigate if recruitment strategies influence attention and memory test outcomes.

Main Methods:

• Three groups of college students were recruited using different methods: monetary incentives, course credit, and mandatory participation.
• Participants completed laboratory tests measuring sustained attention and recognition memory.
• Performance data was analyzed to compare the three recruitment conditions.

Main Results:

• Monetary incentives led to a significant, albeit small, improvement in sustained attention and recognition memory.
• Course credit incentives did not significantly alter test performance compared to mandatory participation.
• No differences in test performance were observed based on the time of semester the studies were conducted.

Conclusions:

• Monetary incentives can positively influence participant performance in cognitive tasks.
• Course credit incentives may not be sufficient to enhance performance in psychological research.
• Recruitment strategies are a critical factor to consider in the design and interpretation of psychological research involving student participants.