The psychologist tests the null hypothesis that the level of depression of fourth graders in this class does not differ from fourth graders in general at the school and obtains a t score of –0.20
The decision regarding the null hypothesis would be to
A) reject it.
B) fail to reject it.
C) adjust the power.
D) increase the sample size.
B
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Professor Nagini developed a measure to rate children's fears. To test inter-rater reliability, he
A) compared the level of agreement between two different observers who used his measure simultaneously. B) used people who were part of children's natural environment to do the rating. C) compared the degree to which children from different cohorts scored similarly. D) compared the extent to which his measure correlated with neurobiological measures of distress.
The usefulness of projective measurement techniques derives from
A) their use of a multiple-choice format. B) the use of an objective scoring system. C) item response theory. D) their simple and reliable scoring methods. E) none of these.