Let's assume you are conducting an experiment to determine the effect of a new drug on the incidence of epileptic seizures. You select 20 epileptics from the 150 epileptics being treated at a nearby hospital and administer the drug to them. You record the number of seizures in each of the 20 subjects for one month. The new drug is an example of a(n) _________
a. dependent variable c. statistic
b. constant d. independent variable
D
You might also like to view...
What is one of the five key personality dimensions of traits used to identify a personality disorder?
a. intelligence b. agreeableness c. impulsivity d. compulsivity
When a child shows a preference for the nonsense word "blek" over "bkel," the child is showing evidence of having acquired
a. knowledge about the phonology of language. b. semantic knowledge. c. syntactic knowledge. d. knowledge about pragmatics.
Which of the following types of prevention tends to be the most difficult because it involves large-scale societal changes?
A. quaternary B. tertiary C. primary D. secondary
Which of the following is true with regard to the heritability of intelligence?
a. Monozygotic twins have nearly identical IQ scores, indicating the vast majority of variation in intelligence is genetic. b. Heritability estimates for intelligence are generally greater for adults than for children. c. Studies indicate that the heritability of intelligence is very low. d. Regardless of age, heritability estimates for intelligence range from .50 to .70.