According to a study by Saccuzzo, Kewley, Johnson, and colleagues (2003),
a. the various measures of positive affect are completely independent.
b. various measures of positive affect are best conceptualized as a single construct.
c. a large number of items is required to reliably and validly measure positive affect.
d. each measure of positive affect has a high level of unique variance.
b
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A research study that evaluates changes in behavior related to age over time by examining one group of participants who are all roughly the same age is called a(n) ____
a. time-series design b. interrupted time-series design c. cross-sectional developmental design d. longitudinal developmental design
The likelihood of a dizygotic twin of a person with schizophrenia also having schizophrenia is about _____%.
A) 12 B) 27 C) 50 D) 96
The _____ is sometimes called the emergency center of the body
A) pineal gland B) pituitary gland C) thyroid gland D) adrenal gland
Which of the following is a characteristic that might be a part of your phenotype?
a. your height and eye color b. the members of your family c. what you have learned in school d. the childhood diseases you have had e. the number of chromosomes you have.