Ed 603 Quiz 15

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  1. Which one of the following types of research usually yields the most objective information?
    1. interview
    2. observation
    3. questionnaire
    4. survey

  2. In a prediction study, the criterion variable is the
    1. extraneous variable.
    2. manipulated variable.
    3. predicted variable.
    4. negative variable.

  3. A study that determined that ninth grade boys did better than ninth grade girls in math, but not in science, is an example of which of the following types of studies?
    1. causal-comparative
    2. cross-sectional
    3. experimental
    4. longitudinal

  4. An extraneous variable is a variable
    1. that the researcher hopes will be present in the study.
    2. besides the independent variable that can affect the results.
    3. that has an effect on the independent variable.

  5. Children having attended nursery school were compared with those having no such experience on a readiness test at the beginning of kindergarten and were found to be superior. The research attributed this superiority to the children's nursery-school experience. The greatest threat to internal validity is
    1. history.
    2. maturation.
    3. testing.
    4. selection.
    5. mortality.

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