Understanding how Moodle grades CBM quizzes

Understanding how Moodle grades CBM quizzes

by Manuel de la Torre -
Number of replies: 1

Today my students answered a CBM quiz. I also applied the full CBM functionality code in Moodle available from http://tmedwin.net/cbm/moodle/.  I am using Moodle 2.35

What I don´t understand is how Moodle converts the total CBM points each student got to their respective Moodle Grade.

Some students are getting 100 with different total CBM points, others get lower grades even when they have higher CBM.

Can somebody explain me how this works?

As an example of this here are my quiz results.

First name Quiz Grade CBM Total
Alan Sebastian 100 69.2
Carlos 100 73.9
Cesar David 100 73.2
Heriberto 100 75.2
José Ramón 100 81.2
Lenny 100 91
José Humberto 93 62.8
Luis Fernando 87 55.7
Edgar 86 57.7
Michelle  84 60.4
Maru 75 51.3
Hassan Fuad 74 48.2
Pamela 61 48
José Santiago 53 32.2
Javier 40 25.3
Juan Manuel  28 16.1
Brandon 25 16.6
Diego 18 0.2
Juan Jesús 12 4.3

 

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In reply to Manuel de la Torre

Re: Understanding how Moodle grades CBM quizzes

by Tony Gardner-Medwin -
Picture of Particularly helpful Moodlers Picture of Plugin developers

I'm not sure where a grade table like this is shown. Maybe the grades somehow are juxtaposing a Best Grade from multiple attempts with CBM marks from a single attempt. Can't say if it's a bug without more info. TGM