Use the Following to Answer Questions

question 2

Multiple Choice

Use the following to answer questions :
A researcher randomly divides young women suffering from anorexia into two groups. Participants in Group A receive psychotherapy and drug treatments; participants in Group B receive attention (but no therapy) and a "sugar pill." The researcher then compares participants in the two groups on relief of anorexia symptoms.
-This is an example of what research design?

• A) experiment
• B) natural experiment
• C) correlational study
• D) case study

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Definitions:

Relative Frequency

The proportion of times a particular value occurs in relation to the total number of observations.

Distribution

The arrangement, frequency, or spread of something across a particular area or among a specified group.

Average

A statistic specifying the sum of the values that the items in a class have on a quantitative variable P, divided by the number of items.

Distribution

In logic, refers to the way a term is used in a categorical proposition to apply to all members of its category, also relevant in mathematical operations and probability theory.