Design = 2 x 2 Number of trials per stimulus = 100 100 100 100 MARGINAL ANALYSES ***************** *** Top across Bot *** ------------------------- Bot MRI probabilities: level P1 P2 1: 0.750 0.710 2: 0.450 0.920 (z_obs): ( 4.4728**) ( 3.8776**) 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: 1.228 0.674 1.08 2: 1.279 -0.126 0.38 (z_obs): ( 0.177 ) ( 4.316**) CONCLUSIONS: PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.800 0.870 2: 0.410 0.950 (z_obs): ( 6.0730**) ( 1.8715* ) 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: 1.968 0.842 0.76 2: 1.417 -0.228 0.27 (z_obs): ( 1.689* ) ( 5.602**) 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 0.650 0.100 0.150 0.100 0.600 0.150 0.200 0.050 12 0.120 0.330 0.010 0.540 0.059* 0.392 0.072** 0.479 21 0.220 0.070 0.190 0.520 0.119** 0.171** 0.291* 0.419 22 0.010 0.070 0.040 0.880 0.004-- 0.076 0.046 0.874 --------------------------------------------------------------- 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 ___________________________________________________________ Signal Detection MICROANALYSES ****************************** *** Top | Bot *** Top levels: 1 & 2 ------------------------ subject's response on Bot: 1 2 Marg. CONCLUSIONS stimulus @ level 1 on Bot d' : 0.795 1.182 1.228 crit: 0.887 0.000** 0.674 SI => ~DS; =d's => ?PI beta: 1.476 0.497 1.077 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 2.268 1.142** 1.279 crit: 1.426 -0.307** -0.126 ~SI & ~=d's => ?~PI and ?~DS beta: 1.940 0.367 0.376 <- 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' : 1.734 2.346 1.968 crit: 1.111 0.253** 0.842 SI => ~DS; =d's => ?PI beta: 1.526 0.116 0.756 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 1.852 1.092** 1.417 crit: 0.702 -0.620** -0.228 ~SI & ~=d's => ?~PI and ?~DS beta: 0.660 0.280 0.265 <- 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) ______________________________________________________________________