The dependent variable in a study of children with attentional problems is the severity of inattention symptoms after treatment.
Which of the following statements operationally defines and completes the sentence: Inattention symptoms were measured __________?
a) with the Acme Instrument (Smith, 2000), a reliable, valid, and widely used measure of inattention
b) with a reliable, valid, and widely used measure of inattention.
c) by naturalistic observation.
d) with the Acme Instrument.
Question 2
Which statistic should be used to analyze differences between groups in a repeated-measures design?
a) Paired t test-sample
b) Independent t test samples
c) Correlation coefficient
d) Degrees of freedom
Lynx-hare interactions have served as a model system for the study of the effects o
Results from sequential study of two cohorts tested at three ages and at three different points in t
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