This article describes how to create a new variable(s) that is standardized and will have an average of 0 for each respondent, and that will optionally have a standard deviation of 1 for each respondent. The Sample Standard Deviation is used in this calculation. Please consider the data below, on the left is the raw data of a scale question Strongly agree to Strongly disagree. On the right is the same raw data but standardized.
Requirements
- A Displayr document that contains one or more Nominal - Multi, Ordinal - Multi, Numeric - Multi, Numeric - Grid, Nominal, Ordinal, or Numeric variable sets.
Method
To use this transformation:
- Select one or more Nominal - Multi, Ordinal - Multi, Numeric - Multi, Numeric - Grid, Nominal, Ordinal or Numeric variable sets in the Data Sources tree.
- Hover and click Plus (+) > Numeric Transformations > Scale > Standardize Within Case.
- A new variable set containing the standardized data within the respondent is created.