Christina L Sieloff1. 1. School of Nursing, Oakland University, Rochester, MI, USA. sieloff@oakland.edu
Abstract
PURPOSE: To describe the Sieloff-King Assessment of Departmental Power (SKADP) instrument and the psychometric evaluation of both the SKADP and its revision: the Sieloff-King Assessment of Group Power within Organizations (SKAGPO) instrument. DESIGN: A survey of 357 chief nurse executives in the United States to psychometrically evaluate the SKAGPO. METHODS: Psychometric evaluation of the SKAGPO included: (a) internal consistency reliability using Cronbach's alpha coefficient, split-half with the equal-length Spearman Brown Correction Formula, and item analysis; (b) concurrent criterion-related validity; and (c) factor analysis. FINDINGS: Cronbach's alpha coefficient for the SKAGPO was .92. Subscales' alphas ranged from .63 to .88. Item-total correlations ranged from .24 to .68, with an average item-total correlation of .48 (n = 334). Concurrent criterion-related validity was supported. CONCLUSIONS: The SKAGPO and the related subscales showed initial reliability and validity.
PURPOSE: To describe the Sieloff-King Assessment of Departmental Power (SKADP) instrument and the psychometric evaluation of both the SKADP and its revision: the Sieloff-King Assessment of Group Power within Organizations (SKAGPO) instrument. DESIGN: A survey of 357 chief nurse executives in the United States to psychometrically evaluate the SKAGPO. METHODS: Psychometric evaluation of the SKAGPO included: (a) internal consistency reliability using Cronbach's alpha coefficient, split-half with the equal-length Spearman Brown Correction Formula, and item analysis; (b) concurrent criterion-related validity; and (c) factor analysis. FINDINGS: Cronbach's alpha coefficient for the SKAGPO was .92. Subscales' alphas ranged from .63 to .88. Item-total correlations ranged from .24 to .68, with an average item-total correlation of .48 (n = 334). Concurrent criterion-related validity was supported. CONCLUSIONS: The SKAGPO and the related subscales showed initial reliability and validity.
Authors: Christa E Bartos; Douglas B Fridsma; Brian S Butler; Louis E Penrod; Michael J Becich; Rebecca S Crowley Journal: J Biomed Inform Date: 2008-03-04 Impact factor: 6.317