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: 0.583 0.583 2: 0.233 0.867 (z_obs): ( -4.2730**) ( 3.5571**) 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: 0.421 0.210 1.00 2: 0.383 -0.728 0.70 (z_obs): ( 0.107 ) ( 3.882**) CONCLUSIONS: PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.667 0.867 2: 0.717 0.950 (z_obs): ( 0.4949 ) ( 1.4387 ) 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: 1.541 0.431 0.59 2: 2.218 0.573 0.30 (z_obs): ( 1.624 ) ( 0.593 ) 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 0.500 0.083 0.167 0.250 0.389 0.194* 0.278 0.139* 12 0.100 0.133 0.033 0.733 0.031* 0.202 0.102* 0.664 21 0.383 0.033 0.333 0.250 0.299 0.118* 0.418 0.165 22 0.033 0.100 0.017 0.850 0.007-- 0.127 0.043 0.823 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 11 response = 12 stimulus = 11 response = 22 stimulus = 12 response = 11 stimulus = 12 response = 21 stimulus = 21 response = 12 ___________________________________________________________ Signal Detection MICROANALYSES ****************************** *** Top | Bot *** Top levels: 1 & 2 ------------------------ subject's response on Bot: 1 2 Marg. CONCLUSIONS stimulus @ level 1 on Bot d' : 0.587 0.512 0.421 crit: 0.674 -0.674** 0.210 ~SI but =d's => ?PI and ?~DS beta: 1.251 0.621 1.000 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.244 0.232 0.383 crit: 0.674 -1.020** -0.728 ~SI but =d's => ?PI and ?~DS beta: 1.144 0.768 0.703 <- 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' : 1.248 1.458 1.541 crit: 1.068 -0.253** 0.431 ~SI but =d's => ?PI and ?~DS beta: 1.740 0.239 0.592 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 2.080 2.250 2.218 crit: 1.405 0.180** 0.573 ~SI but =d's => ?PI and ?~DS beta: 2.138 0.119 0.305 <- 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) ______________________________________________________________________