DrGillespie Has Two Groups in Her Experiment

question 27

Multiple Choice

Dr.Gillespie has two groups in her experiment.She places each participant in a group by flipping a coin-heads means Group A,tails means Group B.Dr.Gillespie has satisfied the requirement of:

• A) experimental control.
• B) placebo control.
• C) blind experimentation.
• D) random assignment.

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Definitions:

Standard Ratchets

Mechanical devices used to allow continuous rotary motion in one direction while preventing motion in the opposite direction, usually adhering to common sizes and specifications.

Pneumatic Tools

Tools powered by compressed air, used in various applications for their high power-to-weight ratio and simplicity.

Truck Service Shop

A facility specializing in the maintenance, repair, and various service requirements of trucks.

Lightweight

Describes objects or materials designed to be of lower weight to improve efficiency, performance, or ease of handling.