Exam 2: Personality Research Methods

A psychologist gives a group of participants 20 personality tests. He looks at the correlations between each test and each of the other 19 (a total of 180 correlation coefficients). He finds two correlations that are statistically significant-that is,that his statistical tests tell him would not occur more than five times out of 100. What should the psychologist conclude from his study?

A researcher divides participants into those who suffer from insomnia and those who sleep well.He compares the two groups on the number of hours each spends at leisure activities in an average week.He finds the insomniacs spend significantly fewer hours at such activities than do the participants who sleep well.In this example,the number of hours spent at leisure activities is

A researcher compares people who have gone to college with those who have not.He predicts and finds that people with a college education are less likely to smoke or drink than those who never went. In this example,the researcher is using

What is made difficult by the "file drawer" problem?

A test maker conducts the appropriate statistical tests to make sure that all the items on his new personality test are measuring the same basic concept. He wants to demonstrate that the test has good

A statistically significant finding can sometimes be the result of chance fluctuation. This concern can be eased by

To obtain an interaction in your research findings,you would need more than one

Among the disadvantages of the case study method is

A psychologist is working with a patient who suffers from a very rare disorder. Which type of research is the psychologist likely to use?

A test maker wants to show that scores on her new measure of schizophrenia are correlated with professional psychologists' ratings of schizophrenia. She is interested in establishing

If the difference in a measured behavior is so small between experimental groups that it could be caused by a chance fluctuation,then we say

Which of the following is true about reliability?

Tony found in his study of introversion that the more introverted subjects in his sample had fewer problems at work. Tony has found evidence for a

Which of the following statements is true about theories of personality?

Which of the following is correct about the case study method?

Which of the following does a correlation coefficient not tell us?

Give three reasons why statistically significant findings for a hypothesis may be,in reality,due to chance.

A psychologist developed a new measure of "stage fright." He gave the test to 30 students and divided them into those scoring high and those scoring low.Next,he watched the students for signs of anxiety just before each was to give a talk in front of a class.What was the psychologist trying to establish by watching the students before their talk?

A psychologist develops a new test for measuring a construct he calls "need for Status." However,another psychologist to whom he shows the test says it looks like a measure of "need for Achievement." What type of evidence does the first psychologist need to collect to persuade the second psychologist?

Statistical tests of significance provide a yes or no answer to which question?