Testing for Mediation and Moderation

Grayson N. Holmbeck provides tips for using multiple regression and SEM when testing for mediators and moderators.

Q&A

Making Sense of Mediators and Moderators

Helena Kraemer clarifies the roles of mediators, moderators, and interactions in RCTs.

Q&A

Defining a Pilot Study

Helena Kraemer shares her thoughts on what should and should not be called a pilot study.

Quick Tip - 1 minute 54 seconds

Conflict of Interest

Joseph R. Calabrese discusses COI issues in medical research.

Presentation - 15 minutes 53 seconds

Accepting Feedback from the Community

Velma McBride Murry discusses the importance of community input at the beginning of the research process.

Quick Tip - 1 minute 49 seconds

Using the Internet to Reach Hidden Populations

John Matthews and Elizabeth Cramer share their experiences using technology to reach hard-to-reach populations for research.

Q&A

Post-Hoc Probing of Mediator and Moderator Effects

Grayson N. Holmbeck explains why post-hoc tests are important, and provides examples.

Q&A

Adapting Material with Foster Parent Focus Groups

Joe Price describes the process his group went through as they adapted an intervention for a group of diverse foster parents.

Quick Tip - 3 minutes 4 seconds

Applying Anthropological Principles

Anthropology can enhance the research process, states Margaret R. Weeks.

Quick Tip - 2 minutes 21 seconds

Developing a Coding System for Narratives

Barbara H. Fiese stresses that a coding system should be based on the underlying purpose of the study.

Quick Tip - 2 minutes 9 seconds