Which of the Following Techniques or Actions Represents Constancy in Data

question 20

Multiple Choice

Which of the following techniques or actions represents constancy in data collection for control of extraneous variables in a study examining the effect of hormone replacement therapy on bone density loss in postmenopausal women?

• A) Drawing blood from all participants at the same time of day
• B) Always having the same nurse or phlebotomist always draw blood from all participants
• C) Using the same room for drawing blood from all participants
• D) Ensuring that all participants are postmenopausal women taking hormone replacement therapy

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Definitions:

FICA-OASDI

Federal Insurance Contributions Act - Old Age, Survivors, and Disability Insurance; a U.S. payroll tax to fund Social Security and Medicare benefits.

Employee's Portion

The part of payroll taxes and other deductions that employees are responsible for, which is withheld from their wages.

Taxes

Financial charges imposed by a government on individuals, corporations, and transactions to fund public spending and services.

Prepaid Workers' Compensation Insurance

An asset account that represents insurance payments made in advance for workers' compensation, which provides coverage for employee injuries on the job.