What type of correlation describes the situation in which the more training a person engages in, the faster his or her race times become?
Curved correlation
Absence of a correlation
Positive correlation
Negative correlation
Positive correlation
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Behavioral geneticists have concluded that ____
a. many psychological disorders can be accounted for by an individual gene b. much of our development and behaviors are influenced by a small number of genes c. both genetic and environmental influences affect behavior d. behavior is largely influenced by the environment
Why can the thalamus be compared with a network computer server?
A) It encodes, stores, and retrieves information. B) It is involved in computing calculations required to solve mathematical problems. C) It receives input from a variety of sources and relays this information to a variety of locations. D) It is critical for the creation of new memories.
A group of psychologists has been given the task of selecting psychological tests for use at the mental health center. They examine the strengths and weaknesses of each of the major tests. When it comes to the MMPI-2,
what will they see as a possible weakness? a) The test does not have norms. b) It is lengthy and therefore quite time consuming. c) It is based on the outdated and discredited psychoanalytic model. d) The test can be given only to people with at least a high school education.
A sample obtained from a population with ? = 12 has a standard error of 2 points. How many scores are in the sample?
A) ?n = 36 B) ?n = 24 C) ?n = 6 D) ?n = 3