________ are more or less plausible ideas used to explain something (e.g., a behavior) and can be tested using research methods
a. Observations
b. Hypotheses
c. Variables
d. Correlations
b. Hypotheses
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Which invasive test can be used if blood tests and ultrasound have identified a potential problem with the developing child, or if there is a family history of inherited disorders?
A. amniocentesis B. chorionic villus sampling (CVS) C. ultrasound sonography D. first-trimester screen
A school curriculum built on Howard Gardner's theory of intelligence would provide
a. neuromuscular training because such skills underlie general intelligence. b. a diverse curriculum to cultivate a wide range of skills and talents, both traditional and nontraditional. c. training in logic, rhetoric, philosophy, and math to strengthen the general factor of intelligence. d. emphasis only on creative, artistic abilities and not the traditional emphasis on analytic abilities.
Hiroshi is 82 years old and lives alone. Which of the following scents will least likely get his attention?
A. garbage B. roast chicken C. natural gas D. wet dog
When predicting from a three-factor, multiple R, the value of b indicates
a. the first intercept b. the criterion variables c. the first predictor variable d. how much change in Y will occur for a given change in the first predictor, when the effects of the second predictor have been held constant