A researcher expects a treatment to increase the scores for individuals in a population. The treatment is evaluated using a one-tailed hypothesis test, and the test produces z = +2.40 . Based on this result, what is the correct statistical decision?
a. The researcher should reject the null hypothesis with ? = .05 but not with ? = .01.
b. The researcher should reject the null hypothesis with either ? = .05 or ? = .01.
c. The researcher should fail to reject H0 with either ? = .05 or ? = .01.
d. Cannot answer without additional information
B
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Which of the following students provides the best information about theories of gender development?
a. Adam: "Children's gender-related behaviors are more important than their thoughts about gender.". b. Sarah: "Before the age of 5, children's thoughts about gender are more important than their gender-typed behavior. After 5, their behavior is more important than their thoughts. c. Mylene: "Children's gender schemas turn out to be more important than any of the other mechanisms for explaining gender development. d. Rick: "Children's thoughts and behavior related to gender are both important factors in explaining gender development.".
On average, a sample of n = 16 scores will provide a better estimate of the population mean than you would get with a sample of n = 9 scores from the same population
Indicate whether the statement is true or false
Social skills training programs for patients with schizophrenia have been a. very successful
b. not at all successful. c. somewhat successful while the program is in effect. d. only successful when the patient is on medication.
Which of the following is not a component of an attitude?
a. ?cognitive b. ?biological c. ?affective d. ?behavioral