1HIVQUAL Group Learning Guide – New York State DOH AIDS Institute

Constructing a Sample Learning Objectives

To understand the purpose of sampling during data collection

To be able to draw a random sample for a quality improvement project

To have at least one idea for how to better define the facility’s sampling methodology

2HIVQUAL Group Learning Guide – New York State DOH AIDS Institute

Constructing a Sample Definitions

Sampling: allows teams to make inferences about a total population based on observations of a smaller subset of that group

Oversampling: may be required if a measurement pertains exclusively to one group within a population

3HIVQUAL Group Learning Guide – New York State DOH AIDS Institute

Constructing a Sample Methodology

Define the selection criteria.• Gender• Age• Patient condition• Treatment status

Identify eligible cases.Randomly select cases.

4HIVQUAL Group Learning Guide – New York State DOH AIDS Institute

Constructing a Sample Sampling Chart

5HIVQUAL Group Learning Guide – New York State DOH AIDS Institute

Constructing a Sample Example: Random Number Table

6HIVQUAL Group Learning Guide – New York State DOH AIDS Institute

Constructing a Sample Example