2.1. Method
2.1.1. Instruments
One approach to constructing short tests is to select the best performing items
from longer tests on the basis of psychometric criteria, such as item-total correlations.
For example, to create an abbreviated set of Big-Five markers from Goldbergs
100-item set, Saucier (1994) relied on psychometric criteria, selecting those
items that showed high factor purity and would form reliable scales. The strategy