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: 0.700 0.483 2: 0.283 0.700 (z_obs): ( -5.1222**) ( 2.3801**) 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: 0.483 0.524 1.15 2: -0.049 -0.573 1.03 (z_obs): ( 1.576 ) ( 4.538**) CONCLUSIONS: PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.683 0.833 2: 0.517 0.717 (z_obs): ( 1.7964* ) ( 1.4350 ) 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: 1.444 0.477 0.70 2: 0.615 0.042 0.85 (z_obs): ( 2.383**) ( 1.862* ) 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 0.600 0.100 0.083 0.217 0.478 0.222** 0.205** 0.095** 12 0.117 0.167 0.050 0.667 0.047 0.236 0.119 0.597 21 0.367 0.150 0.150 0.333 0.267 0.250 0.250 0.234 22 0.183 0.117 0.100 0.600 0.085* 0.215 0.198* 0.502 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 11 response = 12 stimulus = 11 response = 21 stimulus = 11 response = 22 stimulus = 22 response = 11 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' : 0.613 0.015* 0.483 crit: 1.165 -0.480** 0.524 ~SI & ~=d's => ?~PI and ?~DS beta: 1.693 0.993 1.146 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.147 0.141 -0.049 crit: 0.524 -0.842** -0.573 SI => ~DS; =d's => ?PI beta: 1.069 0.879 1.027 <- 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' : 1.291 0.888 1.444 crit: 1.068 -0.589** 0.477 ~SI but =d's => ?PI and ?~DS beta: 1.725 0.399 0.702 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 0.270 0.573 0.615 crit: 0.552 -0.495** 0.042 SI => ~DS; =d's => ?PI beta: 1.119 0.639 0.849 <- 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) ______________________________________________________________________