### Abstract

Original language | English |
---|---|

Title of host publication | Computer assisted assessment: research into e-assessment |

Editors | E. Ras, D. Joosten-Ten Brinke |

Publisher | Spinger |

Pages | 47-60 |

DOIs | |

Publication status | Published - 2015 |

Event | Computer assisted assessment: research into e-assessment - Duration: 1 Jan 2015 → 1 Jan 2015 |

### Conference

Conference | Computer assisted assessment: research into e-assessment |
---|---|

Period | 1/01/15 → 1/01/15 |

### Fingerprint

### Cite this

*Computer assisted assessment: research into e-assessment*(pp. 47-60). Spinger. https://doi.org/10.1007/978-3-319-27704-2_6

}

*Computer assisted assessment: research into e-assessment.*Spinger, pp. 47-60, Computer assisted assessment: research into e-assessment, 1/01/15. https://doi.org/10.1007/978-3-319-27704-2_6

**A Practical Procedure for the Construction and Reliability Analysis of Fixed Length Tests with Random Drawn Test Items.** / Draaijer, S.; Klinkenberg, S.

Research output: Chapter in Book / Report / Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - A Practical Procedure for the Construction and Reliability Analysis of Fixed Length Tests with Random Drawn Test Items

AU - Draaijer, S.

AU - Klinkenberg, S.

PY - 2015

Y1 - 2015

N2 - A procedure to construct valid and fair fixed-length tests with randomly drawn items from an item bank is described. The procedure provides guidelines for the set-up of a typical achievement test with regard to the number of items in the bank and the number of items for each position in a test. Further, a procedure is proposed to calculate the relative difficulty for individual tests and to correct the obtained score for each student based on the mean difficulty for all students and the particular test of a student. Also, two procedures are proposed for the problem to calculate the reliability of tests with randomly drawn items. The procedures use specific interpretations of regularly used methods to calculate Cronbach’s alpha and KR20 and the Spearman-Brown prediction formula. A simulation with R is presented to illustrate the accuracy of the calculation procedures and the effects on pass-fail decisions.

AB - A procedure to construct valid and fair fixed-length tests with randomly drawn items from an item bank is described. The procedure provides guidelines for the set-up of a typical achievement test with regard to the number of items in the bank and the number of items for each position in a test. Further, a procedure is proposed to calculate the relative difficulty for individual tests and to correct the obtained score for each student based on the mean difficulty for all students and the particular test of a student. Also, two procedures are proposed for the problem to calculate the reliability of tests with randomly drawn items. The procedures use specific interpretations of regularly used methods to calculate Cronbach’s alpha and KR20 and the Spearman-Brown prediction formula. A simulation with R is presented to illustrate the accuracy of the calculation procedures and the effects on pass-fail decisions.

U2 - 10.1007/978-3-319-27704-2_6

DO - 10.1007/978-3-319-27704-2_6

M3 - Conference contribution

SP - 47

EP - 60

BT - Computer assisted assessment: research into e-assessment

A2 - Ras, E.

A2 - Joosten-Ten Brinke, D.

PB - Spinger

ER -