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: 0.633 0.583 2: 0.717 0.433 (z_obs): ( 0.8805 ) ( 1.5699 ) 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: 0.551 0.341 1.04 2: 0.405 0.573 1.16 (z_obs): ( 0.441 ) ( 0.974 ) CONCLUSIONS: PS DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.883 0.650 2: 0.867 0.683 (z_obs): ( 0.1381 ) ( 0.2907 ) 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: 1.577 1.192 1.89 2: 1.588 1.111 1.65 (z_obs): ( 0.028 ) ( 0.276 ) 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 0.550 0.083 0.333 0.033 0.559 0.074 0.324 0.043 12 0.150 0.567 0.200 0.083 0.251 0.466 0.099* 0.184* 21 0.333 0.083 0.533 0.050 0.361 0.056 0.506 0.078 22 0.067 0.500 0.250 0.183 0.179** 0.387 0.137* 0.296 --------------------------------------------------------------- NOTE: * p<.10; ** p<.05, two-tailed; -- probs are too small --------------------------------------------------------------- SUMMARY: sampling independence has failed in the following cells stimulus = 12 response = 21 stimulus = 12 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' : 0.606 0.247 0.551 crit: 0.312 0.566 0.341 PI and DS beta: 1.006 1.116 1.037 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.625 0.517 0.405 crit: -0.180 1.135** 0.573 SI => ~DS; =d's => ?PI beta: 0.735 1.573 1.162 <- 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' : 1.928 0.794** 1.577 crit: 1.119 1.335 1.192 SI => ~DS; and ?~PI beta: 1.348 2.106 1.889 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 2.028 1.174** 1.588 crit: 0.842 1.368* 1.111 SI => ~DS; and ?~PI beta: 0.705 2.500 1.654 <- 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) ______________________________________________________________________