Ed 603 Quiz 11

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  1. Which of the following relationships (correlation coefficient) is the strongest?
    1. -.75
    2. +.25
    3. +.50
    4. +.60

  2. In a correlation study, a significant correlation coefficient
    1. must be in the high .70s.
    2. establishes a cause-effect relationship.
    3. is a high relationship.
    4. may suggest a cause-effect relationship.

  3. A correlation coefficient of .50 means that the variables are related
    1. 5%.
    2. 25%.
    3. 50%.
    4. 100%.

  4. For the same level of confidence, or significance level, a larger coefficient is required when samples are
    1. clustered.
    2. larger.
    3. smaller.
    4. stratified.

  5. In a relationship study, if both variables are expressed as scores (interval data), the correlation technique generally calculated is the
    1. Spearman rho.
    2. rank difference coefficient.
    3. Pearson product-moment coefficient.
    4. regression coefficient.

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