Computations

You can specify automatically computed values of replies in the 'EDIT' – 'Questionnaire' tab. Computation is only available to 3KA private package users.

This feature is especially useful with quizzes and tests, where you are interested in the score (number of points), based on the values of individual answers. An example of use in a survey would be the calculation of a respondent’s age based on the year of birth.

You can add a computation in the 'EDIT' – 'Questionnaire' tab by navigating your mouse to the orange + icon, which will display the entire array of available questions. Computations are listed under the category 'Advanced features'. A new window will appear, where you can edit computations:

• First, choose a variable from the dropdown menu (e.g. Q1);
• Then specify the desired operation, where you can choose between adding, subtracting, multiplying and dividing;
• Select another variable from the next dropdown menu. For example, you can set the computation Q1 + Q2;
• If you wish to include several operations and variables, repeat these steps.

The following advanced settings can also be used when editing computations:

• If you select the option 'Number' instead of the variable, this allows you to perform computations with constants (e.g. variable Q1 is multiplied by 10);
• The double-sided green arrow icon allows you to change the order of the variables, by clicking on the icon and dragging the variable to the desired position. The basket-shaped icon allows you to remove the selected variable from the computation;
• To the left and the right of each variable, you will find plus and minus-shaped icons (Brackets), which allow you to edit brackets and ensure the correct order of arithmetic operations with complex computations;
• In the bottom left corner ('Variable name'), you can rename the computation. In the question text, you can also insert the value of the computation by entering #computation_name#;
• In the bottom left corner (under the 'Variable name' field), you can determine the number of decimals for computation (from 0 to 10).

With quizzes and tests, you might want to set the value of individual answers before you enter computations (e.g. 1 for correct answer and 0 for incorrect answer). To change the answer values click on the advanced editing icon, select the option 'Edit values' and enter the appropriate value to the left of the individual answer (e.g. 1 for correct answer and 0 for incorrect answer).

when answering a question and entering the desired value in the 'Value' window.

A computation is the same as a computed value, which is available in the 'DATA' – 'Computations' – 'Computed values' tab.