The null hypothesis for a chi-square states that the two variables _____
a. are causally related c. are independent of each other
b. are related in some way d. do not intersect
C
The null hypothesis for a chi-square states that the two variables are independent. A significant chi-square means that there is a relationship between the variables.
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In a population of N = 10 scores, the smallest score is X = 8 and the largest is X = 20 . What is the range for this population?
a. 8 c. 12-13 b. 10 d. 20
An unusual, but often effective, treatment for people with very severe or melancholic depression that involves the use of electrodes on a person's head is
a. convulsion distortion therapy. b. electrical therapy. c. electroconvulsive therapy. d. bioelectrical therapy.
The degree to which conclusions reached about relationships in an experiment are reasonable is referred to as construct validity
a. True b. False Indicate whether the statement is true or false
psychological disorder is defined as a condition characterized by ________.
a. abnormal thoughts, feelings, and behaviors b. erratic sleep and dream patterns c. high degrees of stress d. atypical activities