The two pieces of information obtained from a correlation coefficient are
A. the extent of external validity and internal validity of a study.
B. interobserver reliability and percent agreement between two observers.
C. the direction and strength of the relationship between two variables.
D. the predictive relationship and the causal inference between two variables.
C. the direction and strength of the relationship between two variables.
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Dr. Stillingsworth is interested in people's reactions to a controversial jury verdict. Dr. Stillingsworth calls people at their home between the hours of 1:00 p.m. and 3:30 p.m. on a Tuesday afternoon. In this example, Dr. Stillingsworth has MOST likely selected
a. a representative sample. b. a biased population. c. a biased sample. d. a statistically significant population.
Electrical messages can be transmitted in the neuron up to:
A. 2.68 miles per hour B. 268 miles per hour C. 2,680 miles per hour D. 26,800 miles per hour
Not having enough money is often a major reason for someone to not actually obtain medical health care even after they have made the decision to seek care. This would be considered:
a. appraisal delay c. utilization delay b. illness delay d. cultural delay
If your self-concept is reasonably accurate, it is said to be:
a. congruent with reality b. incongruent with reality c. conditional on acceptance d. unconditional on acceptance