Government by Investigation: Congress, Presidents, and the Search for Answers, 1945–2012

Appendix D: Supporting Statistical Analysis

249 Supporting Statistical Analysis APPENDIX D 09-2268-7 App D:0322-8 9/11/13 9:30 PM Page 249 Table D-1. Investigatory Characteristics X Length a. Summary statistics Adjusted Std. error of R R2 R2 the estimate .450 .202 .103 .471 b. ARNOVA Sum of Mean squares Df square F Sig. Regression 4.962 11 .451 2.030 .035 Residual 19.548 88 .222 Total 24.510 99 c. Coefficients Unstandardized Standardized coefficients coefficients B Std. error Beta t Sig. (Constant) –.087 .256 –.340 .734 Congress led .627 .219 .506 2.860 .005 House led .061 .116 .058 .526 .600 Full committee venue –.001 .157 –.001 –.007 .994 Subcommittee venue .049 .150 .047 .329 .743 Commission venue .341 .218 .310 1.562 .122 Police patrol .189 .112 .190 1.687 .095 Domestic issue .069 .114 .066 .608 .545 Process breakdown –.078 .121 –.079 –.642 .523 Personal misconduct –.135 .178 –.089 –.761 .449 Repair .088 .118 .087 .746 .458 Fact finding –.241 .113 –.242 –2.128 .036 250 Supporting Statistical Analysis 09-2268-7 App D:0322-8 9/11/13 9:30 PM Page 250 Table D-2. Investigatory Characteristics X Breadth a. Summary statistics Adjusted Std. error of R R2 R2 the estimate .467 .219 .121 .460 b. ARNOVA Sum of Mean squares Df square F Sig. Regression 5.199 11 .473 2.237 .019 Residual 18.591 88 .211 Total 23.790 99 c. Coefficients Unstandardized Standardized coefficients coefficients B Std. error Beta t Sig. (Constant) –.102 .249 –.409 .684 Congress led .466 .214 .382 2.181 .032 House led –.202 .114 –.195 –1.777 .079 Full committee venue –.089 .153 –.076 –.579 .564 Subcommittee venue –.009 .147 –.009 –.063 .950 Commission venue .497 .213 .457 2.331 .022 Police patrol –.152 .109 –.155 –1.388 .169 Domestic issue .220 .111 .213 1.989 .050 Process breakdown –.248 .118 –.254 –2.097 .039 Personal misconduct –.330 .173 –.220 –1.904 .060 Repair .164 .115 .163 1.422 .159 Fact finding .106 .111 .108 .960 .339 Supporting Statistical Analysis 251 09-2268-7 App D:0322-8 9/11/13 9:30 PM Page 251 Table D-3. Investigatory characteristics X complexity a. Summary statistics Adjusted Std. error of R R2 R2 the estimate .558 .311 .225 .431 b. ARNOVA Sum of Mean squares Df square F Sig. Regression 7.409 11 .674 3.618 .000 Residual 16.381 88 .186 Total 23.790 99 c. Coefficients Unstandardized Standardized coefficients coefficients B Std. error Beta t Sig. (Constant) .060 .234 .256 .798 Congress led .358 .201 .294 1.786 .078 House led –.066 .107 –.063 –.617 .539 Full committee venue –.222 .144 –.191 –1.544 .126 Subcommittee venue –.144 .138 –.139 –1.045 .299 Commission venue .572 .200 .527 2.862 .005 Police patrol –.032 .103 –.033 –.311 .756 Domestic issue .065 .104 .063 .623 .535 Process breakdown –.257 .111 –.264 –2.316 .023 Personal misconduct –.218 .162 –.145 –1.341 .183 Repair .150 .108 .150 1.387 .169 Fact finding .069 .104 .070 .661 .510 252 Supporting Statistical Analysis 09-2268-7 App D:0322-8 9/11/13 9:30 PM Page 252 Table D-4. Investigatory characteristics X leadership a. Summary statistics Adjusted Std. error of R R2 R2 the estimate .447 .200 .100 .455 b. ARNOVA Sum of Mean squares Df square F Sig. Regression 4.552 11 .414 2.001 .038 Residual 18.198 88 .207 Total 22.750 99 c. Coefficients Unstandardized Standardized coefficients coefficients B Std. error Beta t Sig. (Constant) .185 .247 .751 .455 Congress led .237 .211 .198 1.119 .266 House led –.119 .112 –.117 –1.060 .292 Full committee venue –.204 .151 –.180 –1.349 .181 Subcommittee venue –.164 .145 –.161 –1.127 .263 Commission venue .152 .211 .143 .720 .474 Police patrol –.020 .108 –.021 –.186 .853 Domestic issue –.019 .110 –.019 –.177 .860 Process breakdown –.158 .117 –.166 –1.350 .180 Personal misconduct –.103 .171 –.070 –.604 .547 Repair .120 .114 .122 1.053 .295 Fact finding .242 .109 .253 2.216 .029 Supporting Statistical Analysis 253 09-2268-7 App D:0322-8 9/11/13 9:30 PM Page 253 Table D-5. Investigatory characteristics X freedom to investigate a. Summary statistics Adjusted Std. error of R R2 R2 the estimate .412 .170 .066 .484 b. ARNOVA...