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. Author manuscript; available in PMC: 2018 Jun 7.
Published in final edited form as: Med Care. 2016 Oct;54(10):944–949. doi: 10.1097/MLR.0000000000000585

Table 4.

Summary statistics for factor composite scores

Composite Measure Number of items Mean score SD Internal consistency# Number of survey responses* needed for reliability >0.7
Clinic Functionality 30ˆ 3.70 0.66 0.87 14
 Staff relationships 7 3.67 0.76 0.91 10
 QI orientation 12 3.64 0.71 0.94 16
 Manager readiness for change 7 3.70 0.92 0.96 19
 Staff readiness for change 4 3.79 0.69 0.92 48
Clinic workload 6 2.69 0.70 0.79 18
Teamwork 8 3.40 0.66 0.78 12

Abbreviations: SD, standard deviation; QI, quality improvement.

#

Internal consistency is calculated as ordinal alpha for first-order factors and Cronbach’s alpha for higher-order factor

*

Calculated using Spearman-Brown Prophesy Formula

ˆ

Clinic Functionality factor includes four sub-factors: staff relationships, QI orientation, manager readiness for change, and staff readiness for change.