ProfessR (version 2.1)

EXAMstats: Exam Statistics

Description

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

Usage

EXAMstats(j, key)

Arguments

j

matrix of student responses

key

key of correct answers

Value

• List
• H
  Matrix: question, correct response, student responses, difficulty, Desc, BiSer
• kr20
  Kruder-Richardson reliability statistic

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

B2 = readSCANTRON(rawfn2)

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

Estat$kr20