Adjusts the layout of the vertical rulers in Table 6. This instruction helps make the "vertical rulers" more useful. Several ruler sizes can be specified in the same run.

 

Yardstick = Horizontal columns , Vertical lines, Low range, High range, {Measure or End}

 

Horizontal columns = maximum width of vertical ruler display in columns.

The standard is 80 columns wide. 0 means as wide as needed.

 

Vertical lines = number of lines or rows per logit (or per user-scaled unit)

The standard is to make the rulers about 50 lines long, regardless of logit range.

 

Low range = lowest measure to show on rulers.

High range = highest measure to show on rulers.

 

Measure = position the elements with extreme scores according to their estimated measures

End = position the elements with extreme scores at the ends of the rulers.

 

Unspecified values take their standard values or are calculated from the estimated measures.

 

Example:Generate a large vertical ruler display, to be used for display:

Yardstick=0,10

 

Multiple copies of the vertical rulers, with different dimensions, can be generated

Yardstick = (Horizontal columns , Vertical lines, Low, High),(H,V,L,H),(H,V,L,H),...

where each set (H,V,L,H) cause the generation of another set of rulers with the corresponding Horizontal column and Vertical lines and range specifications.

 

Example:Generate a standard and a compact ruler display:

Yardstick = (80,5,-3,4),(40,4)

 

(80,5,-3,4) 80 columns wide with 5 rows per logit, for the range -3 to +4 logits.

(40,4) 40 columns wide with 4 rows per logit. The range is matched to the measures.