Knowledgeable and Unbiased Observers Have Generally Noted, and Studies Have

question 12

Multiple Choice

Knowledgeable and unbiased observers have generally noted, and studies have reliably shown, that psychotherapy is better than no treatment at all for a person who is seriously depressed. My study failed to find a difference. From this I can conclude that

• A) psychotherapy really is not effective.
• B) my study must have been poorly done.
• C) my study may have lacked sufficient power to find a difference.
• D) other psychologists don't know what they are talking about.

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Definitions:

Y-Intercept

The point where a line crosses the y-axis on a graph.

Least Squares Line

A line of best fit determined by minimizing the sum of the squares of the vertical distances of the points from the line.

Shape of Distribution

Describes the geometric outline formed by plotting the frequency of data points over a range of values.

Quartiles

Values that divide a dataset into four equal parts, indicating the distribution of values in the dataset.