working TCC (Test response funciton)

2021-10-29 18:43:56 +00:00
parent 6b1bbda169
commit 258915b08f
7 changed files with 25 additions and 19 deletions
--- a/app/lib/irt/models/three_parameter_logistic.py
+++ b/app/lib/irt/models/three_parameter_logistic.py
@ -7,7 +7,6 @@ class ThreeParameterLogistic:
    self.theta = kwargs['theta']

  def result(self):
-    a = self.model_params.a
-    c = self.model_params.c
-
-    return c + (1 - c) * (1 / (1 + e**(-a * (self.theta - self.b_param))))
+    a = self.model_params.a_param
+    c = self.model_params.c_param
+    return c + (1 - c) * (1 / (1 + self.e**(-a * (self.theta - self.b_param))))