When Neither the Experimenter nor the Participants Know If the Participant

question 46

Multiple Choice

When neither the experimenter nor the participants know if the participant is in the experimental or control group is a characteristic of:

• A) One-group posttest-only design
• B) Posttest-only design with nonequivalent groups
• C) Single-blind procedure
• D) Double-blind procedure

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Definitions:

Midbrain

A central part of the brainstem involved in vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.

Cerebral Peduncles

Structures at the base of the brain, containing nerve tracts that connect the cerebrum with other parts of the brain and spinal cord.

Movement

The action or process of changing physical location or position or of having this changed, fundamental in all living organisms for functions ranging from locomotion to internal transport.

Heart Rate

The number of heartbeats per unit of time, usually measured in beats per minute (bpm), indicating cardiovascular activity and overall health.