AP Psychology Stats

Front

A carefully worded statement of the exact procedures used in a research experiment is known as

Back

operational definition

Front

A computed measure of how much scores vary around the mean score dependent on the range and square root of total scores.

Back

standard deviation

Front

When scores are "bunched up" in the center of a distribution, the

Back

standard deviation will be relatively low

Front

Which correlation coefficient expresses the weakest degree of relationship between two variables? Options: -0.12, +1.00, -0.99, +0.25, -0.50

Back

-0.12

Front

Megalethia claims that her psychological research is “valid”. What does she mean?

Back

The study measures what it claims to measure.

Front

what is single blind?

Back

A research method that helps reduce the chance that participants will guess what a study is about.

Front

The difference between the highest and lowest scores in a distribution.

Back

range

Front

The score that occurs most frequently

Back

mode

Front

Which of the following is the mode for the data set: 4, 4, 5, 6, 7, 7, 7, 8, 9? Options: 4, 7, 9

Back

7

Front

Which of the following is the median for the data set: 4, 4, 5, 6, 7, 7, 7, 8, 9? Options: 4, 7, 9

Back

7