Which of the following uses a quasi-experimental design?
a. A researcher compares the effects of caffeine on sleep by assigning subjects randomly into one of 3 treatment groups (5, 10 or 20 mg. doses of caffeine) and recording EEGs of each subjectthroughout the night
b. To see whether the effectiveness of a new method of reading instruction is different for bilingual children vs. children who speak only English, 40 Bilingual and 40 English-Speaking children aretaught using the bilingual method for one semester and reading scores for the 2 groups arecompared.
c. A clinical psychologist tests the relative effectiveness of two forms of therapy for treatment of panic attacks by recruiting 20 people diagnosed with panic attacks and treating half with one formof therapy and half with the other form of therapy for the same amount of time.
d. In a study of picture memory, 40 subjects are shown 1000 photographs under standard viewing conditions and recognition of the pictures is tested 1 week, 2 weeks, 4 weeks, and 8 weeks later.
B
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Which function is NOT one associated with catecholamines?
A) increasing sympathetic nervous system activity B) increasing parasympathetic nervous system activity C) increasing heart rate D) increasing respiration
Which of the following is the last of the three stages of prenatal development?
a. the embryonic period b. the germinal period c. the fetal period d. the zygotic period
Drawings that represent the areas taken up by the various body parts on the motor cortex appear distorted because they are based on which of the following aspects regarding these body parts?
a. their relative size b. their tactile sensitivity c. their evolutionary origin d. their dexterity
____ is defined as a maladaptive pattern of using a substance that leads to significant problems because of continued usage
a. Psychological addiction c. Chemical addiction b. Substance dependency d. Substance abuse