A threat to external validity that occurs when attitudes projected onto individuals cause them to act in a certain way is called the
A) Hawthorne effect.
B) placebo effect.
C) social desirability effect.
D) expectancy effect.
Question 2
A threat to internal validity that involves the increased in strength due motor unit recruitment (meaning the body increases strength due to more muscle fibers being recruited by the nervous system and not muscle mass gain) is considered
A) maturity.
B) testing.
C) instrumentation.
D) selection.
External View of the Right Eye
Vehicle transmission occurs through contamination of inanimate objects, such as milk.
External auditory canal
Structures of the external ear, middle ear, and inner ear
Internal and external attributions
Work is done by an external agent