Blindness could result from damage to which cortex and lobe of the brain? A. visual cortex in the frontal lobe B. visual cortex in the temporal lobe C. sensory cortex…
Jen collects survey data that indicates that students who spend more time preparing for the Ap test tend to score better than other students. Jen can now conclude that
A. studying improves exam grades.
B. a relationship exists between studying and exam grades.
C. a significant correlation exists between studying and exam grades.
D. anyone who does not study will do poorly on the exam.
Charlotte, a nursery school student, hypothesizes that boys have fights with the finger paints more than girls do. She tests her hypothesis by casually watching the finger-painting table for three…
Vincenzo conducts an experiment to see whether fear makes mice run through mazes faster. He first selected a sample of 60 mice and then divided them into a control group and an experimental group. Which cannot be a confounding variable?
A. How fast the mice are at the start.
B. When the mice run the maze.
C. The population from which he selected his subjects.
D. How frightened the mice are before the experiment
Sandy scores a perfect 100 on a test that everyone else fails. If we were to graph this distribution it would be
A. symmetrical.
B. normal.
C. positively skewed.
D. negatively skewed.
Tamar scored 145 on an IQ test with a mean of 100 and a standard deviation of 15. What is her z
score?
A. −1.5
B. +0.67
C. 1.5
D. +3
Some psychologists consider Stanley Milgram’s obedience studies to be unethical because of which ethical consideration?
A. improper sampling procedure
B. risk of long-term harm
C. clear scientific purpose
D. debriefing
Which of the following hypotheses would be most difficult to test experimentally?
A. Exercise improves mood.
B. Exposure to violent television increases aggression.
C. Studying leads to better grades.
D. Divorce makes children more independent
Karthik and Sue are lab partners assigned to research who is friendlier, girls or boys. After
conversing with their first 10 participants, they find that their friendliness ratings often differ.
With which of the following should they be most concerned?
A. reliability
B. confounding variables
C. validity
D. ethics