Best/worst scaling or MaxDiff scales
When you use best/worst scaling or MaxDiff scaling (Maximum differential), you present the respondent with a number of options. Then you ask him or her to indicate which one in his/her opinion is the most important (or the best), and which on is the least important (or the worst).
Compared to other rating scales, best/worst scaling pushes people to make a clear-cut choice between a number of options. Instead of asking people to choose the best out of one pair and then move on to the next pair and the next until you've got a definite choice, this kind of scaling allows the respondents to choose directly from a whole set, which makes it easier to use and to take a decision. Another benefit from MaxDiff scaling is that there are no numbers involved, people just have to indicate the best and the worst choice in their opinions.
Modifying the class names (column headers)
When you set the Question type to 'Best/worst scaling (MaxDiff)', you will get an empty table with an Options column in the middle, with a check box column on either side. By default, Logframer will indicate the column on the left 'Most important' and the one on the right with 'Least important'.
You can change the headers of these columns any way you want. To do this, click somewhere in the column, and then on the 
button. You can also double-click on the column header itself. This will make a text field appear, where you can modify the header of this column.
Add questions and indicate your preferential ranking
To add questions, click in an empty cell in the 'Options' column in the middle and enter your text.
If you want, you can also indicate the preferential ranking, for one or both selection columns, to indicate the ranking that you hope to achieve by the end of the project (or any other period of time).
