Blocked Random Assignment Is Sometimes Used in Order to

question 3

Multiple Choice

Blocked random assignment is sometimes used in order to

• A)match participants on some potentially confounding factor
• B)insure an equal number of participants per condition
• C)insure that a random sample is selected
• D)accomplish complete counterbalancing

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Definitions:

Simple Random Sample

A subset of individuals chosen from a larger set such that every individual has an equal chance of being selected.

Sample Proportion

The fraction of observations in a sample that belong to a certain category, serving as an estimate of the proportion in the population.

Bias

A systematic error or deviation from the truth in results or inferences.

Normal Distribution

A bell-shaped curve distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.