Which of the following is an example of a negative correlation?
A. Higher trait anxiety is associated with more hours spent studying.
B. Lower trait anxiety is associated with fewer hours spent studying.
C. Higher trait anxiety is associated with fewer hours spent studying.
D. Trait anxiety is not associated with hours spent studying.
Answer: C
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Which theory suggests that motor development takes place over time through a self-organizing principle using sensory feedback?
a. dynamic systems b. ecological c. constructivist d. nativist
The finding that during sleep there is increased production of immune cells supports the ____ theory.
A. repair B. adaptive C. activation-synthesis D. Freudian
Jess is fast asleep, and her roommate Crystal is studying in the next room when their cat knocks a lamp off of the bookshelf. Crystal jumps up from her desk, but Jess remains asleep. What brain structure is responsible for raising or lowering the thresholds of conscious awareness, such that Crystal reacts to the stimulus while Jess does not?
a. ?the reticular formation b. ?the substantia nigra c. ?the medial parietal cortex d. ?the corpus callosum
An experimenter wanted to test the hypothesis that women who eat large meals are not liked as well as women who eat smaller quantities of food by using the one factor repeated measures design. Participants in the study watched a videotape of a woman eating a small nutritious snack, a normal meal, or a huge meal while talking to another person. Each participant viewed three different versions of
the videotape, each with a different woman (Pat, Sue, and Deb) eating a different amount of food. After viewing the videotape, participants filled out a questionnaire about how much they liked each of the women they had seen in the videos. In this experiment, having three different women each eat the three different amounts of food (thereby creating nine versions of the videotape) exemplifies which feature of the repeated measures experiment? a. counterbalancing the order of treatments b. the operational definition of the dependent variable c. embedding the treatment within a context d. randomizing the experimental and control groups