A psychologist conducts research using the twin-study method. He administers a need for Achievement scale to sets of monozygotic and dizygotic twins and finds a correlation of .50 between the scores for pairs of monozygotic twins. If this study is to demonstrate evidence for a genetic influence on need for Achievement, what would we expect the correlation to be between scores for pairs of
dizygotic twins?
A. Higher than .50
B. Lower than .50
C. Very close to .50
D. There is no way to demonstrate a genetic influence with these data.
B
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a. how much treatment the person receives. b. whether the person can afford private treatment. c. the person's coping resources and available social support. d. the severity of the negative consequences that will motivate the person to seek help.
What condition do you most likely have if the symptoms are recurring, distressing flashbacks and bad dreams about certain events?
a) post-traumatic stress disorder b) post-traumatic suicide disorder c) post-shocking stress disorder d) pre-traumatic disturbance disorder
By the age of 6, the rigidity characteristic of the "just right" stage of development tends to fade
Indicate whether this statement is true or false.
If you understand what the sounds of a language represent, you understand its
a. meaning. c. both a and b b. semanticity. d. none of these