TABLE 4 Regression Results,,,,,,
Author,Independent variables,,,d.f.,R2 (percent),
,Effectiveness,Cost,Implementation,,,
Arnold,+0.51*,–0.28***,–0.57*,49,39.3,
Downs,–0.32**,–0.62*,–0.35**,19,75.4,
Zupan,–0.45*,+0.39*,–0.56*,18,78.3,
Dueker et al,–0.84*,NA,–0.04,9,67.8,
Booz-Allen Hamilton,–0.22***,NA,–0.70*,28,52.2,
* significant at 0.01 level ,,,,,,
** significant at 0.05 level ,,,,,,
*** 1.00 < t < 2.00,,,,,,
d.f. = degrees of freedom,,,,,,
NA = not applicable,,,,,,
U = data are unavailable,,,,,,