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

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

HIVQUAL Group Learning Guide – New York State DOH AIDS Institute 3 Constructing a Sample Methodology  Define the selection criteria. Gender Age Patient condition Treatment status  Identify eligible cases.  Randomly select cases.

HIVQUAL Group Learning Guide – New York State DOH AIDS Institute 4 Constructing a Sample Sampling Chart

HIVQUAL Group Learning Guide – New York State DOH AIDS Institute 5 Constructing a Sample Example: Random Number Table

HIVQUAL Group Learning Guide – New York State DOH AIDS Institute 6 Constructing a Sample Example