Which statement about correlational research is true?
a. It is a powerful way to establish causal relationships between variables.
b. It allows a researcher to establish cause-and-effect relationships.
c. It permits researchers to determine whether one variable is predictive of another.
d. It is limited to the study of variables that can be measured in the laboratory.
c
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Shepard and Metzler measured the time it took for participants to decide whether two objects were the same (two different views of the same object) or different (two different objects). These researchers inferred cognitive processes by using
A. image scanning. B. mental chronometry. C. epiphenomena. D. propositional representations.
Molly and Milly are identical twins. Molly has been diagnosed with schizophrenia. Which statement about Milly is true?
a. ?Milly will eventually be diagnosed with schizophrenia. b. ?Environmental factors will play a large role in whether Milly is ever diagnosed with schizophrenia. c. ?Genetic factors alone will determine whether Milly is ever diagnosed with schizophrenia. d. ?Milly will never develop schizophrenia.
According to the DSM-5, cluster A groups which of the following personality disorders?
a. Borderline, compulsive, psychotic b. Paranoid, schizoid, schizotypal c. Avoidant, dependent, obsessive-compulsive d. Antisocial, histrionic, narcissistic
Anxiety disorders affect more than ________ of all adults in the United States.
a. One in ten
b. One in fifty
c. One in twenty
d. One in five