Exam 19: Appendix A: Behavioral Statistics

If the mean of a test is 80 and the standard deviation is 10,a person with a z-score of -2.0 scored which of the following on the test?

When two variables vary together in some orderly fashion,they are

Which of the following is the index of how much a typical score differs from the mean of a group of scores?

The 25 students in the psychology class take a 20-point quiz.Five of the students each obtained a score of 10 on the quiz,ten students each obtained a score of 15,and ten students each obtained a perfect scores of 20.What would be the mean of these scores?

When a psychologist wishes to generalize results to an entire population,he or she would use __________ statistics.

The scatter diagram below depicts which type of relationship?

There are ten students in the pre-kindergarten class.Each student is shown eight colors and asked to name them.The number of colors correctly named by each student was: 8,8,8,8,7,7,6,6,5,4.What would be the median?

On his psychology test,Miguel must determine what percent of all cases are found between a standard deviation (SD)of +3 and a standard deviation (SD)of -3 on a normal curve.His answer to this problem should be __________ percent.

One's shoe size and one's IQ score would be a

When we want to generalize from the behavior of a small group to a large group,we must rely on

For the numbers 10,19,2,9,and 15,the range is

The Pearson r is the most commonly used

Researchers usually cannot use populations when doing their studies because

If you add up all the scores and then divide by the number of scores,you arrive at the

A number that describes a "typical score" around which other scores fall is called a measure of

Jan is summarizing numerical data by finding the mean,median,and mode for this set of data. She is most likely using __________ statistics.

Which of the following is defined as the degree to which an event is unlikely to have occurred by chance alone?

If the points on a scatter diagram are clustered in a pattern that extends from lower left to upper right,this would suggest that the two variables depicted are

Gordon is trying to find the percent of variance in one measure that is accounted for by knowing another measure.In order to do this,Gordon must square the

Correlations are important in