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: 0.350 0.750 2: 0.133 0.817 (z_obs): ( -2.9756**) ( 0.7781 ) 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: 0.289 -0.385 0.86 2: -0.208 -1.111 1.23 (z_obs): ( 1.350 ) ( 2.758**) CONCLUSIONS: PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.700 0.533 2: 0.667 0.617 (z_obs): ( 0.2946 ) ( 0.8340 ) 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: 0.608 0.524 1.14 2: 0.727 0.431 1.05 (z_obs): ( 0.360 ) ( 0.392 ) 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 0.233 0.117 0.467 0.183 0.245 0.105 0.455 0.195 12 0.117 0.017 0.350 0.517 0.062 0.071* 0.404 0.462 21 0.133 0.117 0.533 0.217 0.167 0.083 0.500 0.250 22 0.033 0.150 0.350 0.467 0.070 0.113 0.313 0.504 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 12 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' : 0.411 0.103 0.289 crit: -0.431 -0.282 -0.385 PI and DS beta: 0.770 0.966 0.858 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.685 -1.167** -0.208 crit: -0.674 -1.863** -1.111 ~SI & ~=d's => ?~PI and ?~DS beta: 0.498 4.449 1.233 <- 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' : -0.720 0.820** 0.608 crit: 0.431 0.577 0.524 SI => ~DS; and ?~PI beta: 0.566 1.146 1.143 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 0.992 0.737 0.727 crit: 0.084 0.557** 0.431 ~SI but =d's => ?PI and ?~DS beta: 0.664 1.149 1.050 <- 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) ______________________________________________________________________