fixes for clarity

2021-11-24 16:24:14 +00:00
parent da17748103
commit 19f6f35856
6 changed files with 18 additions and 4 deletions
--- a/app/lib/irt/item_information_function.py
+++ b/app/lib/irt/item_information_function.py
@ -4,6 +4,9 @@ class ItemInformationFunction():
  def __init__(self, irt_model):
    self.model_data = irt_model

+  # determines the amount of information for a given question at a given theta (ability level)
+  # further detailed on page 161, equation 4 here:
+  #  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978482/pdf/10.1177_0146621615613308.pdf
  def calculate(self, **kwargs):
    if self.model_data.model == '3PL':
      p = ThreeParameterLogistic(self.model_data, kwargs).result()