A Researcher Is Interested in Doing a Study Comparing the Effectiveness

question 18

Multiple Choice

A researcher is interested in doing a study comparing the effectiveness of two different approaches to teaching spelling. One approach is phonics-based, and the other is not. She randomly assigns 30 first grade children to the phonics-based approach and 30 children to the other approach. Her dependent variable is the number of words the children spell correctly on a 100-word spelling test. In order to compare the groups, what inferential test should she use?

• A) Chi-square test for contingency tables
• B) Partial correlation coefficient
• C) t test for independent groups
• D) Post hoc analysis of variance

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Definitions:

Schedule M-1

A form used by corporations in the U.S. to reconcile income reported for tax purposes with income reported for financial reporting purposes.

Taxable Income

The amount of an individual's or corporation's income used to determine how much tax is owed to the government in a given tax year.

Schedule L

Schedule L is a tax form used by certain businesses to report their balance sheet details to the IRS, including assets, liabilities, and equity.

Schedule M-1

A form used by corporations filing U.S. federal corporate income taxes to reconcile financial statement income with tax return income.