As compared to the 1950s, fewer Americans smoke cigarettes, and this has led to a dramatic decrease in heart disease. Since the 1950s, the rate of heart disease has decreased by ____
a. 1/8
b. 1/4
c. 1/3
d. 1/2
Answer: C
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Which of the following supports the idea that babbling is innate?
a. Parents can encourage babbling by responding to their babies' babbling sounds. b. Babbling is related to later language and reading skills. c. Deaf children babble using gestures that are similar to the babbling sounds of children who can hear. d. Cultural background influences what sounds a child will babble.
A gene that is heterozygous has which of the following characteristics?
a. Alleles that are the same b. Alleles that are different c. Three alleles d. Two identical pairs of alleles
Which of the following is not an assumption of the one-way repeated measures ANOVA? a. The data are interval-ratio in scale
b. The underlying distribution is normally distributed. c. The variances among the populations being compared are homogeneous. d. The groups are independent.
Which of the following is true of sleepwalking?
a. It appears to be caused by an overactive reticular activating system in the brain. b. It is dangerous to wake a sleepwalker. c. When they awaken the next morning, sleepwalkers typically have little, if any, memory of the sleepwalking episode. d. Sleepwalkers often recall vivid contents of a dream if awakened while sleepwalking.