Selection Bias Occurs When the Sample Is Mistakenly Divided into Strata

question 40

True/False

Selection bias occurs when the sample is mistakenly divided into strata, and random samples are drawn from each stratum.

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Definitions:

Charge Slip

A document used in healthcare settings to itemize the services provided to a patient and their associated costs.

Pegboard System

A method of bookkeeping or scheduling using a board with holes that can hold pegs, used for tracking transactions or appointments.

Day Sheet

Form used for recording all daily financial transactions of charges made and payments received; also called a daily journal. All patient charges and receipts are recorded on the day sheet each day (primarily with manual bookkeeping systems).

Ledger

A record of all charges or services rendered, any payments made by the patient or the insurance carrier, and any adjustments, included with the specific dates of these entries.