Difference scores are computed for
A) a t test for a single sample.
B) a t test for dependent means.
C) a t test for independent means.
D) all t tests when the degrees of freedom are less than 10.
B
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Problems with behavior and mental processing are often assessed by and , respectively
a. self-report; word game tests b. behavioral observations; cognitive assessment c. family interviews; problem-solving tasks d. behavioral judgment paths; cognitive/language assessment
A very aggressive person may find social acceptance as a professional soldier, a greedy person may channel this urge into becoming a successful business person, and a person that tends to lie may rechannel this unacceptable impulse into creative writing. All of these are examples of which defense mechanism?
a. sublimation b. projection c. reaction formation d. compensation
Different sequences of children are tested longitudinally in a study with a
a. cross-sectional design. c. longitudinal-sequential design. b. longitudinal design. d. microgenetic design.
Glucose, a small uncharged molecule, can pass through the cell membrane, but sodium ions do not pass through the membrane easily. What is the most accurate explanation for these findings?
a. Cell membranes have carrier proteins for glucose but not for sodium. b. The cell membrane is semipermeable. c. The membrane potential makes it difficult for sodium ions to diffuse across the membrane. d. The sodium-potassium pump keeps sodium inside the cell.