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The 1KA application allows you to recode numerical and categorical variable values (i.e. you can change their value) in the 'DATA' – 'Computations' – 'Recoding' tab. Recoding is only available to 3KA private package users.

The following recoding functions are available:

  • Add – opens a window for adding variables, which allows you to change the old value into a new value;
  • Edit – displays a window that allows you to edit the recoding of individual variables;
  • Remove – allows you to remove or completely delete the recoding of individual variables;
  • Enabled – Enables or disables the recoding of individual variables;
  • Visible – allows you to set the variable as either visible or hidden in the questionnaire.

A list of recoded values, according to variables, can be found at the bottom of the table by clicking on the 'Run compute for all computed variables' button.

Recoding into the same variable:

  • for example, all the answers with the values 2 and 3 are recoded into a different value (e.g. 11) of the same variable;
  • or defined as missing values, e.g. if the respondent did not provide an answer (-1).

Recoding into a new variable

  • You can recode specific answers of a chosen variable into new values, for example old variable values Q1 (e.g. 1 and 2) are given new values (e.g. 12) only in the Q2 variable;
  • When recoding into a new variable, values can also be defined as missing values;
  • A similar recoding can be performed with categorical variables, for example: you can change Q1 with a 1-5 scale into Q2 with a scale of 1-3. You recode values 1 and 2 of the Q1 variable into value 1 of the Q2 variable (low); you recode value 3 of the Q1 variable into value 2 of the Q2 variable (medium); you recode values 4 and 5 of the Q1 variable into value 3 of the Q2 variable (high). Such a transformation can also be carried out by means of a calculation: Q2 = 1/2 + 1/2*Q1, in which case the Q3 variable will naturally still have five values, but on an interval of 1-3.


For each variable that has been added to the recoding list, you can generate sum frequencies, additional frequencies, descriptive statistics and basic frequencies. These can be later printed or exported in PDF, Word or Excel formats.