# Frequency

## Frequency is the number of times something occurs

Frequency statistics are used to describe a

**distribution of categorical values**. Frequencies are commonly reported as**percentages**and in**cross-tabulation**tables. Frequency is the number of times something**does**or**does not**occur in a distribution. In epidemiology, the frequency statistic is used to establish prevalence and incidence within a given population.### The steps for calculating a frequency in SPSS

1. The values for an outcome or variable are entered into a column of a database.

2. Click

3. Drag the cursor over the

4. Click on

5. Click on the outcome or variable to highlight it.

6. Click on the

7. Click

2. Click

**.**__A__nalyze3. Drag the cursor over the

**D**drop-down menu.__e__scriptive Statistics4. Click on

**.**__F__requencies5. Click on the outcome or variable to highlight it.

6. Click on the

**arrow**to move the outcome or variable into the**V****ariable(s):**box.

7. Click

**OK**. ### The steps for interpreting the frequency output in SPSS

1. Look in the table with the outcome or variable as a title. The

**Frequency**column presents the frequency statistic for each level of outcome or variable. The**Valid Percent**column contains the percentage of the sample for each level of the outcome or variables. These are the two values that are interpreted.Click on a button below to continue.

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