Laub (1999) developed a 60-item measure—the
Organizational Leadership Assessment (OLA)—clustering
six key areas. Although the OLA should be credited for
stimulating servant leadership research, the intercorrelations
between the six areas are so high that the overall OLA
score is recommended for research purposes, whereby its
multidimensional nature is lost. Another frequently used
instrument is Page and Wong’s (2000) Servant Leadership
Profile. Building from a 12 dimensional conceptual
framework, they initially distinguished eight dimensions;
and later reduced them via seven to five (Wong and Davey
2007).