Mona Nabil Demaidi

8 Questions 9 Answers 0 Followers

Questions related from Mona Nabil Demaidi

Is there any classification for the item difficulty and the item description ranges of values in IRT and MIRT?

Is there any classification for the item difficulty and the item description ranges of values in item response theory (IRT) and multidimensional item response theory (MIRT).According to Baker in...

26 June 2015 2,435 7 View

What is the difference between absolute and relative learning gain in pre-test post-test design ?

Hi, I have carried out statistical analysis to assess how students performance improve from the pre-test to the post-test in control and experimental groups. I used both absolute learning gain...

31 March 2015 5,420 10 View

Is there any domain ontologies which capture the educational concepts in the JAVA programming course or c++ ?

Is there any domain ontologies (in owl format) which capture the educational concepts in the JAVA programming course or c++ ?

07 February 2015 8,677 2 View

What does the 'C' in the C-value automatic term recognition algorithm stands for?

Does anyone know what does the 'C' in the C-value automatic term recognition algorithm stand for?

03 February 2015 1,550 5 View

Why is the threshold of Point biserial correlation (item discrimination) in item analysis 0.2?

Point biserial correlation is used to to determine the discrimination index of items in a test. It correlates the dichotomous response on a specific item with the total score in a test. According...

19 January 2015 2,498 7 View

Why should data be normally distributed and continuous in order to apply Pearson correlation?

I have been reading a lot about Pearson correlation and its alternative Spearman's rank correlation. I realized that in Pearson we are finding the correlation on our observed data. However,...

21 October 2014 6,683 9 View

Does anyone have experience with IRTPRO and MIRT package LD chi-square calculations?

I have been looking at Chen and Thissen LD chi square calculations done in IRTPRO and I compared it to MIRT package. The values are different as in IRTPRO they are subtracting the degree of...

05 August 2014 8,250 2 View

How can I apply Classical Test Theory and Item Response Theory to analyse question difficulty index and discrimination index?

I am using CTT and IRT to analyse three different tests I gave to students. Applying CTT was straight forward, however using IRT was a bit confusing to me. I started by assessing the tests...

04 April 2014 559 1 View