To measure an infant's attachment to the mother, psychologists observe the infant's reactions as the mother and a stranger enter or depart from the room. This procedure is called the ___________ Situation
Fill in the blank(s) with correct word
Strange
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According to some psychologists, a person who has lost control over their drug use and used more drugs than he or she meant to in the last year has a compulsive habit known as a(n)
a. addiction. b. drug tolerance. c. psychological withdrawal. d. binge pattern.
The pituitary hormone that aids milk flow in nursing mothers, and that plays an essential function in both maternal and romantic love, is _____
A) oxytocin B) melatonin C) estrogen D) progesterone
Dr. Martinez is doing a research study examining the effects of a new headache medication on migraine pain. He decides to divide his participants up into four subject groups,
each one of which will receive a different amount of medication to take when they have a migraine. The participants in group one receive a pill with 10 milligrams of the experimental medication, while the participants in group two receive a pill with 20 milligrams. Those assigned to group three receive a pill with 30 milligrams, while those in group four receive a placebo pill that has zero milligrams of the medication. Which of the subject groups is the control group in this study? a. Group one b. Group two c. Group three d. Group four
On a variable-ratio schedule, reinforcement is given for the ______
a. first correct response after a fixed amount of time has passed b. first correct response after varying amounts of time have passed c. next correct response after a fixed number of responses have occurred d. next correct response after a varying number of responses have occurred