AphasiaBank Main Concept Analysis

This page provides links to information about main concept analysis.

Selected articles on main concept analysis:

Main Concepts

Here are links to main concepts for tasks from the AphasiaBank Discourse Protocol. These include instructions for scoring presence, accuracy and completeness.


Procedures vary. Examples include:

Main Concept Analysis Training Materials -- Richardson & Dalton

The materials here were compiled by Jessica Richardson, Ph.D. and Sarah Grace Dalton, Ph.D., who continue to update these materials regularly. The materials contain:

Automatic Coding and Scoring with CLAN

It is efficient to use Coder Mode to enter main concepts into a CHAT transcript. You can download this mc.cut file, put it in the folder with the CHAT files you want to code, and then enter the codes into the transcript by following the steps explained in the Coder Mode section of the CLAN manual or viewing the Coder Mode screencast here. This mc.cut file will allow you to code up to 34 main concepts and mark them as AC (Accurate Complete), AI (Accurate Incomplete), IC (Inaccurate Complete), or II (Inaccurate Incomplete). Utterances with no main concept can be coded as NA. If a main concept spans multiple utterances, code it once on the final utterance.

Once the CHAT file has the MC codes on the coder tier, run this CLAN command -- codes filename.cha (or *.cha for all CHAT files in the folder) -- and you'll get a list of all MCs in the sample, the code assigned to each MC, the total number of MCs used in the sample, the total number of each code (AC, AI, IC, II, NA), and a composite score based on the Richardson and Dalton (2015) scoring.