Exhibit 7-7: a Group of Curriculum Designers Has Developed a New

question 94

Multiple Choice

Exhibit 7-7: A group of curriculum designers has developed a new system for teaching phonics to young children.They randomly selected 24 kindergarten students to receive either the old phonics method or the new phonics method.The designers realized that kindergartens have morning and afternoon classes, so they wanted to build this factor into the research design.The following is the mean, standard deviation, and number for each group.
$\begin{array}{lll}\text { Morning } & {\text { Old }}{} & {\text { New }}{} \\ & 16.33 & 13.50 \\ &1.03 & 2.74 \\& 6 & 6 \\ \text { Afternoon } & 13.17 & 16.83 \\ & 3.55 & 2.14 \\ & 6 & 6\end{array}$
The following is an incomplete summary table of the analysis of variance:
$\begin{array}{ll}\underline { \text { Source }} & \underline { \text { SS }} & \underline { \text { df }} & \underline { \text { MS}} & \underline { \text { F}}\\\text { Time of Day } & 0.042 \\\text { Lesson Design } & 1.042 \\\text { Interaction }\\\text { Error } & 128.500 \\\text { Total } & 102950\end{array}$
-Refer to Exhibit 7-7.What is the F value for Time of Day?

• A) .006
• B) .162
• C) 63.375
• D) None of these are true.

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Definitions:

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