ProfessR (version 2.4-1)

EXAMstats: Exam Statistics

Description

Statistical Analysis of Examination where the results are either correct or incorrect.

Usage

EXAMstats(j, key)

Value

List

H

Matrix: question, correct response, student responses, difficulty, Desc, BiSer

kr20

Kruder-Richardson reliability statistic

Arguments

j

matrix of student responses

key

key of correct answers

Author

Jonathan M. Lees<[e-mail]>

Details

At this statge no partial credit is given.

References

Kuder, G. F., and Richardson, M. W. (1937). The theory of the estimation of test reliability. Psychometrika, 2(3), 151-160.

Cortina, J. M., (1993). What Is Coefficient Alpha? An Examination of Theory and Applications. Journal of Applied Psychology, 78(1), 98-104.

See Also

readSCANTRON

Examples

if (FALSE) {
B2 = readSCANTRON(rawfn2)

Estat = EXAMstats(B2$studans, B2$key)

Estat$kr20

}