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: 0.817 0.600 2: 0.633 0.467 (z_obs): ( 2.1934**) ( 1.3848 ) 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: 1.156 0.903 1.46 2: 0.257 0.341 1.06 (z_obs): ( 2.642**) ( 2.244**) CONCLUSIONS: ~PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.900 0.717 2: 0.850 0.683 (z_obs): ( 0.6920 ) ( 0.2990 ) 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: 1.855 1.282 1.93 2: 1.513 1.036 1.53 (z_obs): ( 0.893 ) ( 0.827 ) 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 0.750 0.067 0.150 0.033 0.735 0.082 0.165 0.018 12 0.100 0.533 0.183 0.183 0.179 0.454 0.104 0.263 21 0.350 0.050 0.500 0.100 0.340 0.060 0.510 0.090 22 0.050 0.483 0.267 0.200 0.169** 0.364 0.148* 0.319 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 22 response = 11 stimulus = 22 response = 21 ___________________________________________________________ Signal Detection MICROANALYSES ****************************** *** Top | Bot *** Top levels: 1 & 2 ------------------------ subject's response on Bot: 1 2 Marg. CONCLUSIONS stimulus @ level 1 on Bot d' : 1.190 0.861 1.156 crit: 0.967 0.431** 0.903 SI => ~DS; =d's => ?PI beta: 1.558 1.000 1.456 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.626 0.111 0.257 crit: -0.377 0.656** 0.341 SI => ~DS; =d's => ?PI beta: 0.649 1.069 1.056 <- 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' : 2.397 0.908** 1.855 crit: 1.394 0.908 1.282 SI => ~DS; and ?~PI beta: 1.598 1.511 1.929 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 2.468 0.787** 1.513 crit: 1.150 0.967 1.036 SI => ~DS; and ?~PI beta: 0.813 1.571 1.527 <- 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) ______________________________________________________________________