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: 0.600 0.467 2: 0.517 0.750 (z_obs): ( 0.8302 ) ( 3.2246**) 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: 0.170 0.253 1.03 2: 0.716 0.042 0.80 (z_obs): ( 1.647* ) ( 0.919 ) CONCLUSIONS: ~PS DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.517 0.650 2: 0.483 0.700 (z_obs): ( 0.2740 ) ( 0.4880 ) 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: 0.427 0.042 0.93 2: 0.483 -0.042 0.87 (z_obs): ( 0.168 ) ( 0.365 ) 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 0.417 0.183 0.100 0.300 0.310 0.290 0.207* 0.193 12 0.333 0.183 0.017 0.467 0.181** 0.336** 0.169** 0.314* 21 0.400 0.133 0.083 0.383 0.258* 0.276** 0.226** 0.241* 22 0.217 0.033 0.083 0.667 0.075** 0.175** 0.225** 0.525 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 11 response = 21 stimulus = 12 response = 11 stimulus = 12 response = 12 stimulus = 12 response = 21 stimulus = 12 response = 22 stimulus = 21 response = 11 stimulus = 21 response = 12 stimulus = 21 response = 21 stimulus = 21 response = 22 stimulus = 22 response = 11 stimulus = 22 response = 12 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' : -0.080 0.342 0.170 crit: 0.865 -0.307** 0.253 SI => ~DS; =d's => ?PI beta: 0.930 0.849 1.029 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 1.079 1.092 0.716 crit: 1.668 -0.577** 0.042 ~SI but =d's => ?PI and ?~DS beta: 3.381 0.294 0.797 <- 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' : 0.136 1.144** 0.427 crit: 0.508 -0.674** 0.042 SI => ~DS; and ?~PI beta: 1.062 0.240 0.929 <- betas not tested for equivalence stimulus @ level 2 on Top d' : -0.436 0.300* 0.483 crit: 0.674 -0.921** -0.042 ~SI & ~=d's => ?~PI and ?~DS beta: 0.677 0.725 0.872 <- 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) ______________________________________________________________________