Which Threat to Internal Validity Measures Changes in Respondent Performance

question 17

Multiple Choice

Which threat to internal validity measures changes in respondent performance, such as fatigue, which cannot be credited to the treatment or intervention?

• A) Instrumentation
• B) Regression
• C) Testing
• D) Maturation

---

Definitions:

Binocular Disparity

The slight difference in images seen by each eye, which is crucial for depth perception.

Induced Motion

An optical illusion where a stationary object appears to be moving due to the movement of the surrounding frame or context.

Cue for Depth

Visual or auditory information that helps perceive the relative distance of objects in space, aiding in depth perception.

Apparent Movement

The perception of movement produced by stimuli that are stationary but are presented first at one position and then, at an appropriate time interval, presented at a different position.