Imagine that NASA conducts a study to find out the length of a person's sleep-wake cycle if all time cues, such as daylight and clocks, are removed. How long would you predict this cycle to be, given these conditions?
A. 16 hours and 32 minutes long
B. 20 hours long
C. 24 hours long
D. 24 hours and 18 minutes long
Answer: D
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All young females begin menarche at exactly the same age.
Answer the following statement true (T) or false (F)
Video Activity 14.1: Romantic Relationships in Early AdulthoodClick on the above link to access the Interactive eBook. Once you've signed in, scroll to page 421, and watch the video. When you've finished watching the video, come back to the test, and answer the following questions:Justine and Troy have been dating for about 4 months. Their relationship is characterized by intimacy and passion, but they haven't fully committed to one another. This form of love is called ______ love.
A. infatuated B. companionate C. romantic D. fatuous
Which of the following is not an advantage of a factorial design over single-factor designs?
a. A factorial design is easier to statistically analyze. b. A factorial design is more economical in terms of numbers of participants. c. A factorial design allows you to determine combined effects of variables. d. A factorial design allows you to examine more than one independent variable at the same time.
Which of the following structures are active during REM sleep, but not during wakefulness or NREM sleep?
a. the locus coeruleus b. the raphe nucleus c. the basal forebrain d. the rostral pontine reticular formation