The term DNA stands for ________

While having a conversation with a friend who is pregnant, she says to you that because she is "carrying high" she will have a girl. Based upon the textbook, which of the following statements are you thinking?

a. There is no scientific evidence to support her belief. b. There are countless research studies that support her belief. c. Statistically speaking, she is correct. d. She is wrong, a pregnant woman who is "carrying high" a more likely to be carrying a boy.

What strengthens the probability of a behavior?

a. Either positive or negative reinforcement b. Positive reinforcement only c. Negative reinforcement only d. Neither a positive reinforcement nor a negative reinforcement