Design = 2 x 2 Number of trials per stimulus = 60 60 60 60 MARGINAL ANALYSES ***************** *** Top across Bot *** ------------------------- Bot MRI probabilities: level P1 P2 1: 0.650 0.550 2: 0.433 0.800 (z_obs): ( 2.3463**) ( 2.9324**) 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: 0.511 0.385 1.07 2: 0.674 -0.168 0.71 (z_obs): ( 0.481 ) ( 2.379**) CONCLUSIONS: PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.883 0.533 2: 0.700 0.667 (z_obs): ( 2.4227**) ( 1.4107 ) 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: 1.275 1.192 2.03 2: 0.955 0.524 1.05 (z_obs): ( 0.896 ) ( 2.460**) 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 0.600 0.050 0.283 0.067 0.574 0.076 0.309 0.041 12 0.100 0.333 0.367 0.200 0.202* 0.231 0.264 0.302 21 0.267 0.183 0.433 0.117 0.315 0.135 0.385 0.165 22 0.033 0.167 0.300 0.500 0.067 0.133 0.267 0.533 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 12 response = 11 ___________________________________________________________ Signal Detection MICROANALYSES ****************************** *** Top | Bot *** Top levels: 1 & 2 ------------------------ subject's response on Bot: 1 2 Marg. CONCLUSIONS stimulus @ level 1 on Bot d' : 0.769 -0.462** 0.511 crit: 0.466 -0.180** 0.385 SI => ~DS; and ?~PI beta: 1.064 0.977 1.069 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.490 0.993 0.674 crit: -0.792 0.319** -0.168 ~SI but =d's => ?PI and ?~DS beta: 0.602 0.838 0.712 <- 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' : 2.162 0.499** 1.275 crit: 1.426 0.876* 1.192 SI => ~DS; and ?~PI beta: 2.108 1.367 2.027 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 1.202 1.118 0.955 crit: 0.234 0.799** 0.524 ~SI but =d's => ?PI and ?~DS beta: 0.644 1.308 1.046 <- 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) ______________________________________________________________________