I've just been running my first ever regression and I'm using R for an lmer. I've created two models, a null one (part ~ 1 + (1 | id) + (1 | word)) and another with a predictor I want to test (part ~ 1 + conf + (1 | id) + (1 | word)). I've compared them both and the model with a predictor is significantly better, but I can't see from the data which direction the prediction goes (i.e. are conf and part inversely correlated or not). Could somebody tell me where I can find this information? Here's my data, thanks in advance:
Null Model: Generalized linear mixed model fit using Laplace Formula: part ~ 1 + (1 | id) + (1 | word) Data: align Family: binomial(logit link) AIC BIC logLik deviance 537.9 551 -265.9 531.9 Random effects: Groups Name Variance Std.Dev. word (Intercept) 2.309122 1.51958 id (Intercept) 0.055252 0.23506 number of obs: 601, groups: word, 32; id, 20 Estimated scale (compare to 1 ) 0.8671394 Fixed effects: Estimate Std. Error z value Pr(>|z|) (Intercept) -1.8920 0.3072 -6.158 7.37e-10 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Model with predictors: Generalized linear mixed model fit using Laplace Formula: part ~ 1 + conf + (1 | id) + (1 | word) Data: align Family: binomial(logit link) AIC BIC logLik deviance 490.1 507.7 -241.1 482.1 Random effects: Groups Name Variance Std.Dev. word (Intercept) 2.977549 1.72556 id (Intercept) 0.097771 0.31268 number of obs: 601, groups: word, 32; id, 20 Estimated scale (compare to 1 ) 0.9142627 Fixed effects: Estimate Std. Error z value Pr(>|z|) (Intercept) -3.1001 0.4014 -7.724 1.13e-14 *** conf 1.7941 0.2734 6.563 5.29e-11 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Correlation of Fixed Effects: (Intr) conf -0.505 ANOVA: Data: align Models: align.nul: part ~ 1 + (1 | id) + (1 | word) align.conf: part ~ 1 + conf + (1 | id) + (1 | word) Df AIC BIC logLik Chisq Chi Df Pr(>Chisq) align.nul 3 537.85 551.05 -265.93 align.conf 4 490.14 507.73 -241.07 49.713 1 1.780e-12 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 -- View this message in context: http://www.nabble.com/Very-Simple-Regression-Question-tp15729195p15729195.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.