You calculate a correlation coefficient (rather than a t-test or F-ratio) when the independent variable is ______ and the dependent variable is ______.
a. categorical; categorical
b. categorical; continuous
c. continuous; categorical
d. continuous; continuous
d. continuous; continuous
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In contrast to quantitative research, qualitative research is least concerned with
a. observation. c. conclusions. b. subjects. d. generalizations.
Falbo’s research on only children documents that they
a. are lower than others on achievement motivation and self-esteem. b. are unique from other children. c. are not more likely to cause trouble or have special needs at school. d. all of the above
Which of the following reasons best describes why overdispersion is a problem in logistic regression?
A. Incorrect correlations may be assumed. B. The standard error will be limited and may cause the test statistic to be too large and more likely to become significant. C. The outliers will not significantly affect the results. D. None of the above.
Many students with learning disabilities have problems with attention, and there is an overlap of 10% to 25% between learning disabilities and attention deficit hyperactivity disorder (ADHD)
Indicate whether the statement is true or false