[QTI] Response processing of text entry interaction

[Jean Pierre Malrieu]

Hi,

let's assume I am asking the following question: "What are the causes  
of productivity growth in agriculture?", and model it as a text entry  
Interaction. Let's also assume I am expecting an answer like "It is  
due to mecanisation and fertilization". I would like to rate 0.5 an  
answer which contains only one of the words  "mecanization" and  
"fertilization" and 1 if both words are present.
That is, I would like the score to be proportional to the number of  
expected words contained in the candidate's response.

How should I model the responseProcessing part of the assessment item?

Thanks in advance.

JPM