add rasch functionality to form generation

2023-10-24 20:06:20 +00:00
parent 8ba6b95f21
commit 73f25edfa6
4 changed files with 10 additions and 1 deletions
--- a/app/lib/irt/models/rasch.py
+++ b/app/lib/irt/models/rasch.py
@ -5,7 +5,7 @@ from lib.irt.models.base import *
 class Rasch(Base):

  def result(self):
-    return 0.0
+    return (1 / (1 + self.e(-1 * (self.theta - self.b_param))))

  @classmethod
  def ability_estimate(self, items) -> float: