Margaret, a researcher, wants to conduct a field experiment to determine the effects of a shopping mall's ambience on the purchasing behavior of consumers. However, she has to deal with other influencing factors such as noise, crowd, and space distribution. She wants to avoid them by using randomization. In this scenario, noise, crowd, and space are ________ variables.
A. linear
B. construct
C. extraneous
D. internal
Answer: C
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Most of the known neurotransmitters are synthesized from amino acids
a. True b. False Indicate whether the statement is true or false
At any given time, about ______ million Americans suffer from chronic, long-term sleep disorders
a. 30 c. 70 b. 50 d. 90
The results of the Carolina Abecedarian Project indicate that intervention programs
a. with disadvantaged children do not improve their IQ scores. b. that focus only on preschoolers work as well as long-term intervention programs. c. that focus on the school environment work as well as programs that focus on both the school and home environments. d. can have beneficial effects on both IQ and reading and math achievement.
Zoe is about to compete in the state finals for track. She is looking forward to winning the first place trophy and the recognition that comes with it. This is an example of __________
a. greed b. approach motivation c. primary needs d. avoidance motivation