If researchers are interested in whether or not it is possible for a person to have a reaction time less than 0.05 seconds, and they simply measure the reaction times of volunteers who sign up for the study, what rationale would the researchers give for not using random sampling?
A) Sometimes generality does not matter.
B) Sometimes generality cannot be determined.
C) Sometimes generality can be determined.
D) Sometimes generality is best determined by nonrandom sampling.
A) Sometimes generality does not matter.
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Researchers analyzed interviews with actual child victims of sexual abuse, which reveal that the presumed child sexual abuse syndrome (CSAAS) is largely not confirmed in abused children. This is because they found that most children disclose abuse ________ and later recantations of the admitted abuse are ________.
A) in the first or second interview; very common B) only after multiple interviews; very common C) in the first or second interview; rare D) only after multiple interviews; rare
In family studies of trait heritability, concordance rates are calculated instead of correlations when
a. the trait phenotype appears in an all-or-none fashion. b. the trait is continuous and can assume many values. c. the phenotype is invisible and unnoticed. d. females, rather than males, are the focus of study.
A healthy person will not have grumbles
Indicate whether the statement is true or false.
How did Mary Jane say that she has dealt with her son John's frustrations and difficult temperament?
What will be an ideal response?