If a researcher knows what ______ would be meaningful in his or her research it is relatively easy to determine the sample size required to achieve any level of statistical power.

Conditions involving physical complaints or disabilities occurring in the absence of any physical pathology that could account for them are

a. hypochondriacal disorders. b. anxiety disorders. c. dissociative disorders. d. somatic symptom disorders.

By binding to nicotinic receptors, __________ produces paralysis and death, which is why it is used on poison darts

Fill in the blank with the appropriate word.