Ed 602 Quiz 13

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1. is the formula for
   1. the dependent t-test.
   2. the independent t-test.
   3. the one-way analysis of variance test.
   4. the Scheffe post hoc test.

2. is the formula for
   1. the dependent t-test.
   2. the independent t-test.
   3. the one-way analysis of variance test.
   4. the Scheffe post hoc test.

3. is the formula for
   1. the dependent t-test.
   2. the independent t-test.
   3. the one-way analysis of variance test.
   4. the Scheffe post hoc test.

4. For the following research problem - You are concerned with the effect of computers on the quality of written language. You randomly place the 30 students in your English class into two groups of 15 each. The first group is asked to write their next English theme assignment using a word processing program on a computer, while the other group is asked to write their themes by hand. You ask another English teacher, to read all 30 themes and give them a 1 (poorest) to 10 (best) rating on the quality of their English usage. You want to know if there is a significant difference in the quality ratings of the two groups.

   What is the proper statistical test to use with this research problem?

   1. the dependent t-test
   2. the independent t-test
   3. the one-sample t-test
   4. the one-way analysis of variance test

5. For the following research problem - The number of hours a subject could stay awake was measured as a function of the dose level of a particular drug. Three levels of drug dosage were used. Analyze the results for the data on the dependent variable (number of hours awake) to determine if there was a significant difference among the three levels of drug dosage used.

   What is the proper statistical test to use with this research problem?

   1. the dependent t-test
   2. the independent t-test
   3. the one-sample t-test
   4. the one-way analysis of variance test

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