Initially, the difference between principal component analysis and factor analysis was pointed out. Afterwards, the workshop focused on procedures of factor analysis for creating indexes as a multiphase process. For the creation of a preliminary index, explorative as well as confirmative factor analysis were introduced as options for examining the data- and factor structure for both interval-scaled and categorical indicators. After steps for the selection of suitable indicators and the revision of indexes had subsequently been considered, the determination of a convenient extent of reliability was discussed critically. Thus, the importance of one-dimensional constructs was particularly highlighted. At the same time, it became apparent that the decisive factor for social- and behavioral scientific measurements is their validity. Consequently, the index formation can by no means be regarded as being isolated from textual considerations concerning the validity of a measurement or a construct. During the workshop, Tenko Raykov answered in great detail all the questions posed by the attendees, also on further topics.