Design = 2 x 2 Number of trials per stimulus = 97 95 98 99 MARGINAL ANALYSES ***************** *** Top across Bot *** ------------------------- Bot MRI probabilities: level P1 P2 1: 0.680 0.857 2: 0.516 0.828 (z_obs): ( 2.2850**) ( 0.4594 ) 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: 1.536 0.469 0.63 2: 0.987 0.040 0.64 (z_obs): ( 1.933* ) ( 2.325**) CONCLUSIONS: ~PS ~DS ----------------------------------------------- *** Bot across Top *** ------------------------- Top MRI probabilities: level P1 P2 1: 0.660 0.726 2: 0.684 0.606 (z_obs): ( 0.2793 ) ( 1.7166* ) 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: 1.014 0.412 0.91 2: 0.747 0.478 1.08 (z_obs): ( 1.009 ) ( 0.355 ) 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 0.392 0.289 0.268 0.052 0.449 0.231 0.211 0.109 12 0.042 0.474 0.232 0.253 0.141** 0.375 0.133* 0.352 21 0.041 0.102 0.643 0.214 0.098* 0.045* 0.586 0.271 22 0.040 0.131 0.354 0.475 0.068 0.104 0.326 0.502 --------------------------------------------------------------- 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 ___________________________________________________________ Signal Detection MICROANALYSES ****************************** *** Top | Bot *** Top levels: 1 & 2 ------------------------ subject's response on Bot: 1 2 Marg. CONCLUSIONS stimulus @ level 1 on Bot d' : 1.794 1.490 1.536 crit: 0.237 1.030** 0.469 SI => ~DS; =d's => ?PI beta: 0.306 1.529 0.631 <- betas not tested for equivalence stimulus @ level 2 on Bot d' : 0.247 1.175** 0.987 crit: -1.020 0.391** 0.040 ~SI & ~=d's => ?~PI and ?~DS beta: 0.754 0.794 0.639 <- 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' : 1.585 1.044* 1.014 crit: 0.191 0.989** 0.412 SI => ~DS; and ?~PI beta: 0.385 1.629 0.908 <- betas not tested for equivalence stimulus @ level 2 on Top d' : 0.156 0.859** 0.747 crit: -0.566 0.674** 0.478 ~SI & ~=d's => ?~PI and ?~DS beta: 0.905 1.234 1.081 <- 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) ______________________________________________________________________