Investigators can directly examine the sequences of bases in genes as an accurate presymptomatic test for which of the following?
A. myasthenia gravis
B. Parkinson's disease
C. multiple sclerosis
D. Huntington's disease
Answer: D
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What values are specified by the null hypothesis for the chi-square test for goodness of fit?
a. Proportions for the entire population c. Frequencies for the entire population b. Proportions for the sample d. Frequencies for the sample
Unequal sample sizes in a one-way analysis of variance are generally
a. a major problem. b. a minor inconvenience. c. something to be avoided at all costs. d. impossible.
What kind of statistics allow researchers to make inferences about the likelihood that their results occurred merely by chance?
a. descriptive c. simple b. reliable d. inferential
Students who want to increase their self-esteem by doing better than others are demonstrating a(n) _____ goal orientation
A) mastery B) performance-avoid C) incremental D) performance-approach