Biostatistics for the Clinician## Biostatistics for the Clinician

## University of Texas-Houston

Health Science Center## Lesson 1.2

## Variables and Measures

Lesson 1: Summary Measures of Data 1.2 - 1

Biostatistics for the Clinician## 1.2 Variables and Measures

## 1.2.1 Why Important

Now let's move into some more familiar territory. When you start to measure the impact of a treatment you have to ask yourself, "What kinds of variables am I dealing with here? What are my choices of variables?"Now, you might ask, why do I need to know about types of variables or measures? You need to know, in order to evaluate the appropriateness of the statistical techniques used, and consequently whether the conclusions derived from them are valid. In other words, you can't tell whether the results in a particular medical research study are credible unless you know what types of variables or measures have been used in obtaining the data.

Lesson 1: Summary Measures of Data 1.2 - 9