Suppose that there is a perfect negative correlation between the amount of money that Jane spends and the amount of money that she has in her bank account: for every dollar that she spends, she has exactly one less dollar in her bank account (assuming no interest, fees, or credits). Thus the correlation between Jane's spending and savings can be represented as ____.
a. r = -100
b. r = -1.00
c. r = 0.00
d. r = 100
Question 2
One study found that physicians who were given candy were faster and more accurate in diagnosing a case study than physicians who weren't given candy. Additional research suggests that these results can best be explained by the idea that ____.
a. sugar (temporarily) enhances problem-solving ability
b. being in a good mood enhances problem-solving ability
c. arousal (whether positive or negative) enhances problem-solving ability
d. being given incentives enhances problem-solving ability
Negative Feedback Insulin Glucagon
Change in Emotional States During Adolescence Average emotional state becomes teadilyi more negativ
Nonverbal communications convey strong, powerful messages that may be negative or positive.
The medical assistant spends many hours on the telephone assisting patients.
The cell wall of a Gram-negative bacterium, E. coli
Control of Homeostasis: Negative Feedback