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: 0.567 0.833 2: 0.517 0.667 (z_obs): ( 0.4586 ) ( 2.0409**) 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: 1.135 0.168 0.64 2: 0.473 0.042 0.91 (z_obs): ( 1.932* ) ( 0.550 ) CONCLUSIONS: ~PS DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.633 0.750 2: 0.450 0.750 (z_obs): ( 1.9571* ) ( -0.1054 ) 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: 1.015 0.341 0.84 2: 0.549 -0.126 0.80 (z_obs): ( 1.372 ) ( 2.014**) 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 0.267 0.300 0.367 0.067 0.359 0.208 0.274 0.159* 12 0.133 0.383 0.117 0.367 0.129 0.388 0.121 0.362 21 0.033 0.133 0.417 0.417 0.075 0.092 0.375 0.458 22 0.033 0.300 0.217 0.450 0.083 0.250 0.167 0.500 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 11 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' : 1.247 1.607 1.135 crit: -0.199 0.908** 0.168 SI => ~DS; =d's => ?PI beta: 0.359 1.184 0.635 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 1.194 0.281** 0.473 crit: 0.084 0.028 0.042 SI => ~DS; and ?~PI beta: 0.542 0.969 0.912 <- 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' : 0.576 1.722** 1.015 crit: -0.074 1.020** 0.341 SI => ~DS; and ?~PI beta: 0.812 1.315 0.844 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 0.440 0.454 0.549 crit: -0.842 0.000** -0.126 SI => ~DS; =d's => ?PI beta: 0.627 0.902 0.803 <- 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) ______________________________________________________________________