If a Researchers in an Observational Study Attempts to Control

question 23

Multiple Choice

If a researchers in an observational study attempts to control for a confounding variable, is it more likely that the resulting confidence interval will be wider or narrower than the confidence interval when he/she didn't control for the confounding variable?

• A)It will probably be wider.
• B)It will probably be narrower.
• C)It will have to be disregarded; you can't adjust or control for confounding variables after the fact.
• D)There is no way of knowing.

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Definitions:

Cash Dividends Payable

A liability on the balance sheet indicating the amount of dividends the company has declared but has not yet paid to shareholders.

Declaration Of Cash Dividends

The announcement by a company's board of directors of a payment of cash dividends to shareholders.

Paid-In Capital

The total amount of money or value that shareholders have invested in a company through the purchase of its stock.

Retained Earnings

The part of a company's earnings that is reserved or saved, instead of being distributed as dividends to its shareholders.