Concepedia

Difficulty Parameter

Difficulty Parameter is a psychometric construct in item response theory that specifies the level of item difficulty on a latent trait continuum, distinguishing it from other item parameters by indicating the proficiency level at which an item has a 50% probability of being correctly answered.

142

Publications

5.4K

Citations

388

Authors

181

Institutions

Publications per year

2017–2026

37

Variants

Item Difficulty Parameter

Parents

Publications

142

Computer adaptive practice of Maths ability using a new item response model for on the fly ability and difficulty estimation

S. Klinkenberg, Marthe Straatemeier, Han L. J. van der Maas · Computers & Education · 2011 · 263 citations

, , +12

Item Parameter Estimation Under Conditions of Test Speededness: Application of a Mixture Rasch Model With Ordinal Constraints

Daniel M. Bolt, Allan S. Cohen, James A. Wollack · Journal of Educational Measurement · 2002 · 201 citations

, , +14

The Relation of the Reliability of Multiple-Choice Tests to the Distribution of Item Difficulties

Frederic M. Lord · Psychometrika · 1952 · 182 citations

, , +14

Linguistic Complexity, Schematic Representations, and Differential Item Functioning for English Language Learners in Math Tests

María Martiniello · Educational Assessment · 2009 · 172 citations

, , +16

The Factorial Interpretation of Test Difficulty

George A. Ferguson · Psychometrika · 1941 · 147 citations

, , +11

1–5 of 142

Authors

388

  1. HH
    Hideo Hirose

    Kyushu Institute of Technology, Japan

    4 publications · 66 citations

    4

    h-index

  2. JP
    J. Philipsson

    Swedish University of Agricultural Sciences, Sweden

    2 publications · 136 citations

    2

    h-index

  3. RV
    René V. Dawis

    University of Minnesota, United States

    2 publications · 58 citations

    2

    h-index

  4. RT
    R. T. BERG

    University of Alberta, Canada

    2 publications · 88 citations

    2

    h-index

  5. KA
    Kjell Arne Johansson

    University of Bergen, Norway

    2 publications · 136 citations

    2

    h-index

1–5 of 388

Institutions

181

  1. Educational Testing Service

    Princeton, United States

    7 h-index

    13 publications

    721 citations

  2. University of Alberta

    Edmonton, Canada

    4 h-index

    12 publications

    360 citations

  3. University of Michigan

    Ann Arbor, United States

    4 h-index

    7 publications

    248 citations

  4. Kyushu Institute of Technology

    Kitakyushu, Japan

    3 h-index

    8 publications

    132 citations

  5. Tsinghua University

    Beijing, China

    2 h-index

    9 publications

    256 citations

  6. University of Massachusetts Lowell

    Lowell, United States

    2 h-index

    2 publications

    41 citations

  7. Sapienza University of Rome

    Rome, Italy

    2 h-index

    5 publications

    125 citations

  8. University of Minnesota System

    Minneapolis, United States

    2 h-index

    4 publications

    116 citations

1–8 of 181

Venues

  1. Educational and Psychological Measurement

    10 publications · 338 citations

    10

    h-index

  2. Applied Psychological Measurement

    9 publications · 240 citations

    9

    h-index

  3. Psychometrika

    9 publications · 711 citations

    8

    h-index

  4. Journal of Educational Measurement

    4 publications · 398 citations

    4

    h-index

  5. Journal of Animal Science

    4 publications · 224 citations

    4

    h-index

1–5