A correlation coefficient indicates:
a. only quantitative information about a relationship between variables
b. only qualitative information about a relationship between variables
c. the relationship between the independent and dependent variables
d. the strength and direction of the relationship between variables
Ans: d
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The reason researchers prefer to do experiments whenever possible is that experiments
a. are inexpensive and easy to conduct. b. provide detailed descriptions of behavior. c. demonstrate that one thing likely causes another. d. demonstrate formal operational thought.
The skills best developed in the left hemisphere of the brain are:
a. art and drawing. b. color differentiation. c. creative movement. d. handwriting and phonics.
If the reliability coefficient for a set of test scores is .90, we know that
a. 90 % of the variance is true variance; 10 % is unknown. b. 90 % of the variance is true variance; 10 % is error. c. 90 % of the variance is true variance; 10 % is reliable. d. 81 % of the variance is true variance; 19 % is error. e. 81 % of the variance is true variance; 19 % is unknown.
The European American microculture has traditionally valued each of the following EXCEPT:
a. Individualism b. Self-reliance c. Personal control over one's environment d. Community responsibility for child welfare