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. 1993 Winter;15(2):31–50.

Table 3. Percent Variance Explanation1 for Models Relating Facility Characteristics with Payment, Cost, and Net Payment, for Acute and Long-Term Psychiatric Episodes.

Characteristic Payment Cost Net Payment
Teaching 20.0 0.0 0.1
Psychiatric Beds 0.1 0.9 1.1
RAM Group 0.1 0.4 0.6
1

Variance explanation is the analysis of variance Eta-squared statistic for categorical variables (teaching and the resource allocation methodology [RAM] group), otherwise it is the R-squared statistic of a linear regression.

2

Not significant (p = .220); all others are significant at the p < .0001 level.

SOURCE: Fries, B.E., and Durance, P.W., University of Michigan, Nerenz, D.R., Henry Ford Health System, Ashcraft, M.L.F., University of Washington, 1993.