Random Assignment Controls for Important Differences Among Individual Participants by Balancing

question 200

Multiple Choice

Random assignment controls for important differences among individual participants by balancing them. This is in contrast to designs in which each participant is exposed to each condition or group in an experiment. This latter design controls the individual differences by ____________.

• A)randomly sampling them
• B)controlling the placebo effect
• C)holding them constant
• D)balancing these differences between the conditions or groups

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Definitions:

Narrow Canyons

Deep, slender valleys with steep sides, carved by the erosive force of flowing water over geological time scales.

Downward Incision

The erosional process by which a river cuts deeper into its bed, often leading to the formation of a canyon or gorge.

Erosion

The process by which natural forces like water, wind, ice, and gravity wear away and break down earth materials, transporting them from one place to another.

Stream Deposition

The process by which sediment carried by a stream is laid down or deposited in new locations, often resulting in the formation of deltas and alluvial fans.