Which developmental researchers conducted a classic experiment utilizing the "visual cliff" apparatus?
A. Robert French and Edgar Morehouse
B. Eleanor Maccoby and John Bowlby
C. Friedrich Gretsch and Peter Amble
D. Eleanor Gibson and Richard Walk
Answer: D
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The "best fitting line" is that regression line that
a. minimizes the errors of prediction. b. minimizes each squared error of prediction. c. minimizes the sum of squared errors of prediction. d. hits the most points as it goes through the scatterplot.
Tinesha comes into her Introduction to Psychology class on the first day of the semester and sees a man wearing blue jeans and a T-shirt sitting at the front of class. She does not say anything to him, and assumes that he is just someone sitting in the room. When more students show up and the man doesn’t leave, Tinesha starts to wonder if he is going to cause a problem. When he stands up and says, “Hello everyone, I’m Dr. Lawrence and I will be teaching your psychology class this semester,” Tinesha starts to wonder if this will be a good class. Tinesha’s perception of Dr. Lawrence is probably affected by the fact that he does not represent a common _______, or average “image,” of a college professor.
a. ?exemplar b. ?schema c. ?prototype d. ?concept
In North America, the people who are at greatest risk for HIV infection are
a. men who have had sex with other men. b. heterosexuals with a history of multiple partners. c. people who have shared needles for tattoos or for intravenous drug use. d. all of these.
What is the causal relationship between food additives, sugar consumption, and ADHD?
A. Both have been shown to be major causes of ADHD. B. Only food additives have been shown to be a major cause of ADHD. C. Only sugar consumption has been shown to be a major cause of ADHD. D. Neither are major causes of ADHD.