Scaletype | Method | Score |
---|---|---|
AGG | Aggregate | p i = n i /n mode |
AGGPEN | Wilson’s aggregate with distance penalty | p i = (pAGG i + pDMODE i )/2 |
DMODE | Distance to mode | p i = 1 − abs(imode − i) * 1/d max with d max = 4 for 5-point Likert scales |
DMEAN | Distance to mean | p i = 1 − (abs(ī − i) * 1/d max with d max = 4 for 5-point Likert scales |
SBA | Single best answer | \( {p}_i=\left\{\begin{array}{cc}\hfill 1\hfill & \hfill \mathrm{f}\mathrm{o}\mathrm{r}\ {i}_{mode}\hfill \\ {}\hfill 0\hfill & \hfill \mathrm{else}\hfill \end{array}\right. \) |
normalization | Z-transformation expertscale on (80, 5) | \( {\overline{p}}_{trans}=80+\left({\overline{p}}_{raw}-mea{n}_{exp}\right)/s{d}_{exp}*5\Big) \) |