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: 0.550 0.567 2: 0.383 0.850 (z_obs): ( -1.9487* ) ( 3.4876**) 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: 0.294 0.126 0.99 2: 0.740 -0.297 0.61 (z_obs): ( 1.294 ) ( 1.829* ) CONCLUSIONS: PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.733 0.683 2: 0.517 0.850 (z_obs): ( 2.4183**) ( 2.0914**) 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: 1.100 0.623 1.08 2: 1.078 0.042 0.58 (z_obs): ( 0.062 ) ( 2.447**) 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 0.483 0.067 0.250 0.200 0.403 0.147 0.330 0.120 12 0.233 0.150 0.083 0.533 0.121* 0.262 0.195* 0.421 21 0.383 0.050 0.133 0.433 0.224** 0.209** 0.293** 0.274* 22 0.067 0.083 0.083 0.767 0.022 0.128 0.128 0.723 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 12 response = 11 stimulus = 12 response = 21 stimulus = 21 response = 11 stimulus = 21 response = 12 stimulus = 21 response = 21 stimulus = 21 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' : -0.239 0.588** 0.294 crit: 0.410 -0.674** 0.126 SI => ~DS; and ?~PI beta: 0.881 0.566 0.994 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.773 0.519 0.740 crit: 0.634 -0.774** -0.297 ~SI but =d's => ?PI and ?~DS beta: 1.210 0.585 0.611 <- 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' : 0.893 1.242 1.100 crit: 1.169 0.140** 0.623 SI => ~DS; =d's => ?PI beta: 1.906 0.550 1.084 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 1.338 0.571** 1.078 crit: 1.198 -0.722** 0.042 ~SI & ~=d's => ?~PI and ?~DS beta: 2.031 0.562 0.585 <- 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) ______________________________________________________________________