The increment attribute specifies the size the space between each tick on a slider survey item.
<slider>
integer | A non-negative integer indicates the spacing between tick marks. |
The default is 1.
The following response defines a slider question with an increment of 5 ranging from 1 to 100:
<slider question1>
/ caption = "Move the slider to indicate how warm or cool you feel towards this item."
/ range = (1, 100)
/ increment = 5</response>