You calculate a correlation coefficient (rather than a t-test or F-ratio) when ______.
a. you are interested in comparing group means
b. the independent and dependent variables are both categorical
c. the independent and dependent variables are both continuous
d. the independent variable is categorical and the dependent variables is continuous
c. the independent and dependent variables are both continuous
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Using clock arithmetic, what is 6 + 7 =?
a. 11 b. 12 c. 1 d. 2
The general recommendation for vocational placements for children with autism as they transition from school to postsecondary employment is to stress their and play down their
a. individual strengths; social problems b. intelligence; academic difficulties c. social progress; behavior problems d. intelligence; social problems
Miss Marks is planning her daily literacy instruction. It should include all of the following except which one?
a. She should include whole-group and small-group lessons as well as times for independent reading and writing. b. She should teach students how to comprehend by reading a variety of books aloud and then following up with carefully constructed worksheet questions to assess what the students understood. c. She should provide time to explicitly teach important skills such as phonemic awareness, phonics, vocabulary, comprehension, and fluency. d. She should plan activities that develop students' oral language through experiences and discussions that encourage students to talk with each other and with her.
Answer the following statement(s) true (T) or false (F)
1. When reporting the results of a t-statistic, the researcher should include the means of both groups. 2. When reporting the results of a t-statistic, the researcher should include information about the inferential statistics such as the calculated t, degrees of freedom, value of the statistic and the significance level. 3. The mean of the sampling distribution of the difference is equal to one. 4. The t statistic can only be a positive number. 5. One assumption related to the t-test for independent means is that of normality.