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: 0.967 0.200 2: 0.833 0.200 (z_obs): ( 2.3407**) ( -0.1141 ) 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: 0.992 1.834 3.77 2: 0.126 0.967 1.12 (z_obs): ( 1.925* ) ( 2.362**) CONCLUSIONS: ~PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.950 0.367 2: 0.817 0.567 (z_obs): ( 2.1803**) ( -2.3346**) 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: 1.304 1.645 3.65 2: 1.071 0.903 1.48 (z_obs): ( 0.577 ) ( 2.239**) 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 0.917 0.050 0.033 0.000 0.918 0.048 0.032 0.002-- 12 0.533 0.300 0.100 0.067 0.528 0.306 0.106 0.061 21 0.683 0.117 0.133 0.067 0.653 0.147 0.163 0.037 22 0.367 0.433 0.067 0.133 0.347 0.453 0.087 0.113 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells none ___________________________________________________________ Signal Detection MICROANALYSES ****************************** *** Top | Bot *** Top levels: 1 & 2 ------------------------ subject's response on Bot: 1 2 Marg. CONCLUSIONS stimulus @ level 1 on Bot d' : 0.830 0.619 0.992 crit: 1.811 0.967** 1.834 SI => ~DS; =d's => ?PI beta: 3.184 1.503 3.771 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : -0.017 0.187 0.126 crit: 1.003 0.908 0.967 PI and DS beta: 0.983 1.165 1.121 <- 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' : 1.270 0.421** 1.304 crit: 1.628 0.674** 1.645 SI => ~DS; and ?~PI beta: 3.531 1.216 3.650 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 1.159 0.861 1.071 crit: 1.054 0.431** 0.903 SI => ~DS; =d's => ?PI beta: 1.734 1.000 1.482 <- 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) ______________________________________________________________________