236 Table C-70 ANCOVA Table of Recoded Range Corrected SCR during the Shock Task with Medication as a Covariate SS DF MS F Sig of F Within and Residual (Group) 34779.18 42 828.08 Regression 723.56 1 723.56 . 87 .355 Group 3888.28 3 1296.09 1.57 .212 Within and Residual (Block by Group) 12196.85 12 9 94.55 Block 3987.68 3 1329.23 14.06 . 000 Group by Block 1123.81 9 124.87 1.32 .232 Within and Residual (Tone by Group) 7716.13 43 179.44 Tone 4191.21 1 4191.21 23.36 . 000 Group by Tone 3551.95 3 1183.98 6.60 . 001 Within and Residual (Block by Tone by Group) 10495.21 12 9 81.36 Block by Tone 934.60 3 311.53 3.83 . Oil Group by Block by Tone 355.22 9 39.47 .49 .882