grading

  1. A

    Help: grade distribution issue

    Hi guys! I apologize in advance if my question is not right for this forum. However I hope that you guys who deal with statistics could help. :) My mates had a test examination (200 questions total). Majority of the people did excellent. The grading was as follows: 200 / 200 on the test was...
  2. S

    Inter/Intra-class correlation between graders, large dataset

    I have a set of 100 images obtained from a machine called an OCT, its similar to an ultra-sound and I use it to take pictures of various skin cancers. The main goal is to give a diagnosis by looking at the OCT image. To do so, I pulled 8 ‘features’ that I can observe by OCT. Each feature or...
  3. T

    Help me with a statistical hypothesis

    Hi, I have 46 dissertations from students. I asked 46 students and 4 experts to grade the dissertations using 8-scale mark (1 ... 8) Each student have to evaluate at least 10 different dissertations, and each expert have to evaluate at least 20. In the end, each dissertation is graded by at...
  4. D

    Inter-rater Reliability in Grading Rubric -- How do I analyze this?

    Hello, I'm tasked with analyzing how reliable raters are in rating a single piece of work along multiple dimensions. I'm trying to answer questions like: 1) Which rubric dimensions (some or all) have unacceptable variance across the raters? How do I define the cutoff for unacceptable...
  5. J

    Grading issue

    I have this matter to handle. I have 5 students who each takes a different number of courses. For each term, each gets a grade of A to D. Now after running for a few terms, I want to know collectively which one gets a higher overall grade. This is what I think: As Grade A earns 100...