Suppose a Study Is Done in Which the Experimental and Control

question 15

Multiple Choice

Suppose a study is done in which the experimental and control groups both get pretests and posttests.Which of the following is the best statistical procedure?

• A)Conduct a paired-samples t-test separately for each group to see whether the experimental group's improvement is more statistically significant than the control group's improvement
• B)Conduct an independent-samples t-test that compares the posttest means only.
• C)Conduct an independent-samples t-test that compares the changes scores in the two groups.
• D)All of these are equally acceptable.

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Definitions:

General Journal

A comprehensive record of all financial transactions of a company, used to make entries not suited for specific ledgers.

Posting

In accounting, posting refers to the process of transferring entries from the journal into their respective accounts in the ledger, for the purpose of organizing and summarizing financial information.

Journal

A detailed record where all financial transactions of a business are initially recorded before transfer to accounts in the general ledger.

Ledger

A book or other collection of financial accounts of a particular type.