truth only

code/models/truth_only.stan

@@ -167,7 +167,6 @@ model {
         );
     }
 
-    child_dev_age ~ normal(alpha_dev, sigma_dev);
     child_dev_speech_age ~ normal(alpha_dev, sigma_dev);
 
     has_siblings ~ binomial(has_siblings+no_siblings, p_sib);