6. Results
6.1. Pilot study results
The pilot study allowed us to identify the most informative of
the original survey items based on preliminary factor analyses,
following recommendations from Mcdonald (1999). The proposed
4-factor models fell somewhat short of conventional
K. Hoffmeister et al. / Applied Ergonomics 50 (2015) 160e169 163
criteria for good fit (Mcdonald and Ho, 2002). Typically, a CFI
value above .90 and RMSEA values below .05 are desired,
although in this case, the CFI and RMSEA did not meet these
cutoffs (CFI ¼ .90, .88; RMSEA ¼ .10, .11, respectively). However, a
4-factor model did fit significantly better than a 1-factor model
for both PE and WE facets of ergonomics climate. Item-level
statistics allowed us to identify the best items within each
scale, and the reduced Ergonomics Climate Assessment represented
the best 5 item pairs for each of the four constructs for a
total of 40 items (Table 3)