Dr Primrose Is Studying Sleep Disturbances Among Young Adults and Conducts

Multiple Choice

Dr. Primrose is studying sleep disturbances among young adults and conducts experiments at different times during the night for each patient and monitors their sleep patterns at different points in their sleep cycles. Without realizing it, Dr. Primrose has introduced:

A) confounds.
B) practice effects.
C) cohort effects.
D) maturation effects.