Instructions for Analyzing Data from CAHPS Surveys
Instructions for Analyzing Data from CAHPS Surveys
Instructions for Analyzing Data from CAHPS Surveys
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<strong>CAHPS</strong> ® <strong>Surveys</strong> and <strong>Instructions</strong><br />
All program and data sets needed <strong>for</strong> the <strong>CAHPS</strong> Analysis Program, Version 4.1, are<br />
available <strong>for</strong> downloading in the instructions provided <strong>for</strong> every <strong>CAHPS</strong> survey.<br />
Below is a description of the purpose of each file. Each file should be copied to a<br />
project folder related to the <strong>CAHPS</strong> data set that is to be analyzed.<br />
CONTROL.SAS<br />
CONTROL.SAS is a SAS program that contains examples of the macro call<br />
parameter arguments that need to be specified to produce the recommended reporting<br />
measures <strong>for</strong> <strong>CAHPS</strong> surveys. For most surveys, specific examples of the macro call<br />
are provided in separate instructions on analyzing the results of that survey. The<br />
program also demonstrates the variable cleaning and coding steps needed to per<strong>for</strong>m<br />
the analyses <strong>for</strong> entity-level comparisons. Modifications most likely will need to be<br />
made to this program to reflect how variables are named, how variables are coded or<br />
<strong>for</strong>matted, whether or not entity stratification is used, and whether or not the data set<br />
includes child surveys, among the many possible combinations.<br />
<strong>CAHPS</strong>41.SAS<br />
<strong>CAHPS</strong>40.SAS is the core SAS macro program that per<strong>for</strong>ms the analyses the user<br />
specifies in the control program. The macro file should not be modified.<br />
PLANDTAL.DAT<br />
This is a sample data set that is used by the <strong>CAHPS</strong> macro when running the TEST<br />
data set. It contains the unique plan names, combined strata names, strata weight, and<br />
subsetting code. If this file is not included in your control programs, the macro will<br />
create this data set based on the PLAN variable in the input data set.<br />
SMALLTEST.SAS<br />
This program creates a small data set with ten records that can be used to better<br />
understand what the <strong>CAHPS</strong> macro is doing. More details on how this data progresses<br />
through the macro can be found in the Small <strong>Data</strong> Set Example section in this<br />
document.<br />
FORMAT.SAS<br />
FORMAT.SAS is the SAS program that creates <strong>for</strong>mats helpful to view the data with<br />
English words instead of the data values assigned in the TEST data set. The <strong>for</strong>mats<br />
have the essence of the tables described in the section SAS <strong>Data</strong> Set Requirements.<br />
The program creates the <strong>for</strong>mats in the library named LIBRARY as defined by the<br />
libname LIBRARY statement in CONTROL.SAS and TEST.SAS programs. The file,<br />
currently set up to work with the test data programs, can be modified <strong>for</strong> use with<br />
other data. Modifications, such as changing the values of the <strong>for</strong>mats, adding new<br />
<strong>for</strong>mats or deleting <strong>for</strong>mats, are the most common.<br />
<strong>Instructions</strong> <strong>for</strong> <strong>Analyzing</strong> <strong>Data</strong> <strong>from</strong> <strong>CAHPS</strong> <strong>Surveys</strong><br />
Document No. 2015<br />
Updated 4/2/12<br />
Page 21
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