The use of questionnaires and interviews to compare the responses to a mathematical task of high achievers with low achievers has limitations. The partial information that they have provides a way of comparing high and low achievers. Some references are given here to relevant task formats and theories. An example is given of how examinees’ performance with unusual task formats (specifically, answer-until-correct) may be analysed to throw light on the mathematical description of partial information.
Hutchinson, T. P.
"COMPARISION OF HIGH ACHIEVERS WITH LOW ACHIEVERS: Discussion of Juter’s (2007) article,"
The Mathematics Enthusiast: Vol. 6
, Article 17.
Available at: http://scholarworks.umt.edu/tme/vol6/iss1/17