If an increase on one variable is associated with an increase on another variable, the variables are
a) positively correlated
b) highly correlated
c) negatively correlated
d) not correlated
A
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A fever ____
a. develops independently of the preoptic area b. is part of the body's defense against an illness c. is an indication that the body is not yet fighting the infection d. serves to keep an animal warm during periods of reduced activity
A substantial amount of research on toddlers' relations with siblings has focused on how they respond ____
a. to a twin b. to an older sister c. to the birth of a younger sibling d. to an older brother
Gil describes his son as calm and cautious. He describes his daughter as cheerful and energetic. Gil's descriptions refer to
A) effortful control. B) categorical self. C) temperament. D) level of reactivity.
In the context of one-group pretest-posttest design and the associated threats to internal validity, any changes that occur systematically over time are called ________ effects.
A. regression B. history C. testing D. maturation