Design = 2 x 2 Number of trials per stimulus = 158 157 158 158 MARGINAL ANALYSES ***************** *** Top across Bot *** ------------------------- Bot MRI probabilities: level P1 P2 1: 0.456 0.595 2: 0.408 0.576 (z_obs): ( -0.9187 ) ( 0.2855 ) NOTE: MRI fails if ABS(z_obs) >= 1.645 or equivalently p<.10, 2-tailed Bot Signal Detection Marginal Estimates: level d'12 cr12 beta12 1: 0.129 -0.111 0.98 2: -0.042 -0.234 1.01 (z_obs): ( 0.851 ) ( 0.861 ) CONCLUSIONS: PS DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.449 0.503 2: 0.494 0.506 (z_obs): ( -0.8460 ) ( -0.0004 ) NOTE: MRI fails if ABS(z_obs) >= 1.645 or equivalently p<.10, 2-tailed Top Signal Detection Marginal Estimates: level d'12 cr12 beta12 1: -0.119 -0.127 1.01 2: 0.000 -0.016 1.00 (z_obs): ( 0.597 ) ( 0.789 ) CONCLUSIONS: PS DS ----------------------------------------------- ______________________________________________________________________ *** NOTES ***: for all significance tests, * is p<.10, 2-tailed ** is p<.05, 2-tailed (no stars) is n.s. ~ means NOT (e.g., ~PS means PS failed) ? means POSSIBLY (e.g., ?~DS means DS possibly failed) ______________________________________________________________________ CONDITIONAL ANALYSES ******************** Sampling Independence Joint Probability (observed) vs. ********************* Product of Marginals (predicted by SI) 2-way SI ******** Response 11 12 21 22 Stim 11 0.146 0.310 0.304 0.241 0.205 0.251 0.245 0.300 12 0.108 0.299 0.389 0.204 0.203** 0.205** 0.294* 0.298** 21 0.089 0.316 0.405 0.190 0.200** 0.205** 0.294** 0.301** 22 0.070 0.354 0.424 0.152 0.209** 0.215** 0.284** 0.292** --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 12 response = 11 stimulus = 12 response = 12 stimulus = 12 response = 21 stimulus = 12 response = 22 stimulus = 21 response = 11 stimulus = 21 response = 12 stimulus = 21 response = 21 stimulus = 21 response = 22 stimulus = 22 response = 11 stimulus = 22 response = 12 stimulus = 22 response = 21 stimulus = 22 response = 22 ___________________________________________________________ Signal Detection MICROANALYSES ****************************** *** Top | Bot *** Top levels: 1 & 2 ------------------------ subject's response on Bot: 1 2 Marg. CONCLUSIONS stimulus @ level 1 on Bot d' : 0.461 -0.160** 0.129 crit: -0.457 0.159** -0.111 SI => ~DS; and ?~PI beta: 0.729 0.963 0.978 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.297 -0.284** -0.042 crit: -0.779 0.240** -0.234 ~SI & ~=d's => ?~PI and ?~DS beta: 0.760 0.897 1.009 <- betas not tested for equivalence *** Bot | Top *** Bot levels: 1 & 2 ------------------------ subject's response on Top: 1 2 Marg. CONCLUSIONS stimulus @ level 1 on Top d' : 0.157 -0.255** -0.119 crit: -0.469 0.146** -0.127 SI => ~DS; and ?~PI beta: 0.918 0.933 1.008 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 0.201 -0.162 0.000 crit: -0.776 0.470** -0.016 ~SI but =d's => ?PI and ?~DS beta: 0.838 0.915 1.000 <- betas not tested for equivalence ______________________________________________________________________ *** NOTES ***: for all significance tests, * is p<.10, 2-tailed ** is p<.05, 2-tailed (no stars) is n.s. ~ means NOT (e.g., ~PS means PS failed) ? means POSSIBLY (e.g., ?~DS means DS possibly failed) ______________________________________________________________________