[DATALAD] Recorded changes

code/models/blocks/behavior_model_parameters_simple.stan

@@ -1,7 +1,7 @@
 vector<lower=0>[n_classes] alpha_child_level; // variance across recordings for a given child
 // array[2] vector<lower=0>[n_classes-1] alpha_corpus_level; // variance among children
 // matrix<lower=0>[n_classes-1,n_corpora] mu_corpus_level; // child-level average
-vector<lower=0>[n_classes-1] alpha_pop_level; // variance among corpora
+matrix<lower=0>[2,n_classes-1] alpha_pop_level; // variance among corpora
 vector<lower=0>[n_classes] mu_pop_level; // population level averages
 //vector<lower=0>[n_classes-1] alpha_pop; // mean child-level variance
 

code/models/blocks/behavior_model_priors_simple.stan

@@ -1,6 +1,9 @@
 alpha_child_level ~ gamma(4,1);
 mu_pop_level ~ exponential(4); // 250 vocs/hour
-alpha_pop_level ~ gamma(25, 1); // sd = 0.35 x \mu
+for (i in 1:2) {
+    alpha_pop_level[i] ~ gamma(8, 1);
+}
+
 
 has_siblings ~ binomial(has_siblings+no_siblings, p_sib);
 p_sib ~ uniform(0, 1);