Table 2

Results of Placebo Tests for the Estimated Association Between Implementation of the Mental Health Services Act and the Average Postintervention Outcome, California, 1976–2015

Proportion of Control States With a More Extreme Averagea  in 2007–2015
SuicideHomicideAcute Alcohol Effects
MSPE CutoffNo. of  
Control  
States
Total  
No.
ProportionNo. of  
Control  
States
Total  
No.
ProportionNo. of  
Control  
States
Total  
No.
Proportion
<20 times MSPE8240.3310360.283320.09
<5 times MSPE250.408310.263260.12
<2 times MSPE120.501150.07090.00
Proportion of Control States With a More Extreme Averagea  in 2007–2015
SuicideHomicideAcute Alcohol Effects
MSPE CutoffNo. of  
Control  
States
Total  
No.
ProportionNo. of  
Control  
States
Total  
No.
ProportionNo. of  
Control  
States
Total  
No.
Proportion
<20 times MSPE8240.3310360.283320.09
<5 times MSPE250.408310.263260.12
<2 times MSPE120.501150.07090.00

Abbreviation: MSPE, mean squared prediction error.

a Number of control states in the placebo tests with a more extreme estimated average association (over 2017–2015) between California’s Mental Health Services Act and the postintervention outcome, compared with the estimate for California.

Table 2

Results of Placebo Tests for the Estimated Association Between Implementation of the Mental Health Services Act and the Average Postintervention Outcome, California, 1976–2015

Proportion of Control States With a More Extreme Averagea  in 2007–2015
SuicideHomicideAcute Alcohol Effects
MSPE CutoffNo. of  
Control  
States
Total  
No.
ProportionNo. of  
Control  
States
Total  
No.
ProportionNo. of  
Control  
States
Total  
No.
Proportion
<20 times MSPE8240.3310360.283320.09
<5 times MSPE250.408310.263260.12
<2 times MSPE120.501150.07090.00
Proportion of Control States With a More Extreme Averagea  in 2007–2015
SuicideHomicideAcute Alcohol Effects
MSPE CutoffNo. of  
Control  
States
Total  
No.
ProportionNo. of  
Control  
States
Total  
No.
ProportionNo. of  
Control  
States
Total  
No.
Proportion
<20 times MSPE8240.3310360.283320.09
<5 times MSPE250.408310.263260.12
<2 times MSPE120.501150.07090.00

Abbreviation: MSPE, mean squared prediction error.

a Number of control states in the placebo tests with a more extreme estimated average association (over 2017–2015) between California’s Mental Health Services Act and the postintervention outcome, compared with the estimate for California.

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