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

question 71

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.Which of the following is associated with greatest power

• A) small effect size, small number, small heterogeneity.
• B) large effect size, small number, small heterogeneity.
• C) large effect size, large number, small heterogeneity.
• D) large effect size, large number, large heterogeneity.

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Definitions:

Accelerated Depreciation

A method of depreciation in which an asset loses book value at a faster rate than the traditional straight-line method over its useful life.

Useful Life

The expected time period over which an asset is useful to the owner.

Double-declining-balance

An accelerated method of depreciation which double the rate of normal depreciation, reducing the value of assets more quickly.

Depreciation Expense

The yearly allocation of the cost of an asset over its useful life, reflecting the asset's usage and wear and tear over time.