Glenda has determined that the correlation between the math screening test and her students' math grade is .40 . What percent of the variation in math scores is accounted for by knowing the students' scores on the screening test?
a. 10 percent
b. 16 percent
c. 25 percent
d. 40 percent
B
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Information processing skills are measured by the
a. digit-symbol coding subtest. b. matrix reasoning subtest. c. block design subtest. d. information subtest.
The mere exposure effect is probably an important part of the ____
a. propinquity effect b. matching hypothesis c. reciprocity effect d. "what is beautiful is good" effect
Agents, substances, or exposures that can harm a prenatal or perinatal individual's health are collectively referred to as
a. induction defects. b. teratogens. c. aberrations. d. adverse anomalies.
According to the "genetic programming" theory of aging,
A) aging can be controlled by shortening telomeres. B) the release of free radicals predicts most age-related illnesses. C) "aging genes" control certain biological changes, such as gray hair. D) people age due to environmental exposure to toxins that alter their DNA.