An Experimental Study Is Conducted Examining the Relationship Between Drinking

question 69

Multiple Choice

An experimental study is conducted examining the relationship between drinking caffeine and reaction time. Participants are given caffeine by the experimenters in different amounts, and then are assessed on various tests of reaction time. In this study, the amount of caffeine that a participant drinks is the

• A) random variable.
• B) independent variable.
• C) dependent variable.
• D) control variable.

---

Definitions:

Binaural Cues

Sounds that enable the brain to perceive direction and distance by comparing the input from both ears.

Interposition

A visual cue in which one object partly blocks another, suggesting that the blocking object is closer to the observer.

Linear Perspective

A depth cue in art and visual perception where parallel lines appear to converge as they recede into the distance, helping the observer to perceive depth.

Binocular Cues

Depth cues, such as retinal disparity, that depend on the use of both eyes and are crucial in perceiving depth.