The Group of Participants That Is NOT Exposed to the Independent

question 200

Multiple Choice

The group of participants that is NOT exposed to the independent variable under investigation (in an experiment) is called the:

• A) control group.
• B) confound group.
• C) dependent group.
• D) experimental group.

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Definitions:

Plus Four Method

A statistical method that adds four to the sample size and regards two successes and two failures in a binomial proportion confidence interval.

P-value

The probability of obtaining a test statistic at least as extreme as the one observed, assuming the null hypothesis is true; used to determine statistical significance.

Hypothesis

A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Confidence Interval

A span of values, generated from the statistics of a sample, that is likely to comprise the value of an undefined population parameter.