What type of research is described: Applied, Fundamental, or Action?

Here's why:

• Applied Research focuses on solving practical problems and finding solutions to real-world issues. The scenario describes a researcher studying the effect of reinforcement on student achievement "in a practical situation," indicating an aim to apply findings to improve educational outcomes. This contrasts with basic research, which seeks to expand fundamental knowledge without immediate practical application.

The other options are incorrect:

• Fundamental (or Basic) research aims to advance theoretical knowledge without a specific practical application in mind.
• Action research is typically conducted by practitioners to solve an immediate problem in their own setting, often cyclical and less focused on generalizable controls.
• Basic research is synonymous with fundamental research.

The correct option is Applied.