Dr. Archambault is conducting a longitudinal study with the hopes of determining whether hand-eye coordination is affected by aging. Dr. Archambault has his participants complete the same computer-based hand-eye coordination test every year for ten years. Which of the following may threaten the validity of Dr. Archambault's study?

Question

Quizplus · Accepted Answer

The repeated administration of the same test over ten years may result in practice effects, which could threaten the validity of Dr. Archambault's study. These practice effects may make it difficult to determine if any observed changes in hand-eye coordination are due to aging or simply due to increased familiarity with the test over time. Age differences, age effects, and cohort effects are not necessarily threats to the validity of the study, as they are the variables of interest in the investigation.

Dr Archambault Is Conducting a Longitudinal Study with the Hopes