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: 0.567 0.383 2: 0.650 0.617 (z_obs): ( 0.8447 ) ( -2.7225**) 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: -0.129 0.168 0.97 2: 0.682 0.385 1.03 (z_obs): ( 2.466**) ( 0.935 ) CONCLUSIONS: ~PS DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.650 0.533 2: 0.600 0.550 (z_obs): ( 0.4720 ) ( 0.0916 ) 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: 0.469 0.385 1.07 2: 0.379 0.253 1.02 (z_obs): ( 0.275 ) ( 0.566 ) 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 0.367 0.200 0.283 0.150 0.368 0.198 0.282 0.152 12 0.200 0.450 0.267 0.083 0.303 0.347 0.163 0.187* 21 0.333 0.283 0.267 0.117 0.370 0.247 0.230 0.153 22 0.133 0.250 0.317 0.300 0.172 0.211 0.277 0.339 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 12 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' : 0.022 -0.369 -0.129 crit: 0.161 0.180 0.168 PI and DS beta: 1.003 0.874 0.971 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.355 1.124** 0.682 crit: -0.180 1.010** 0.385 SI => ~DS; and ?~PI beta: 0.881 1.655 1.031 <- 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' : 0.880 -0.317** 0.469 crit: 0.377 0.396 0.385 SI => ~DS; and ?~PI beta: 0.946 0.839 1.073 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 0.493 0.478 0.379 crit: 0.102 0.512* 0.253 SI => ~DS; =d's => ?PI beta: 0.931 1.139 1.024 <- 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) ______________________________________________________________________