Concepedia

Willem J. Heiser

WJ

61

Publications

3.2K

Citations

36

H-Index

1983

Active since

Affiliations

Leiden University(Current)

KU Leuven

Universidad de Granada

Leiden University Medical Center

Willem J. Heiser is an author at Leiden University specializing in engineering, social sciences, and psychology.

Top concepts

Publications per year

1983–2019

61

Publications

61

Understanding the differential impact of outcome monitoring: Therapist variables that moderate feedback effects in a randomized clinical trial

Kim de Jong, Patricia van Sluis, Annet Nugter et al. · Psychotherapy Research · 2012 · 243 citations

, , +23

The Outcome Questionnaire (OQ‐45) in a Dutch population: A cross‐cultural validation

Kim de Jong, Annet Nugter, Marike Polak et al. · Clinical Psychology & Psychotherapy · 2007 · 198 citations

, , +26

Neuroticism, alexithymia, negative affect, and positive affect as determinants of medically unexplained symptoms

Véronique De Gucht, Benjamin Fischler, Willem J. Heiser · Personality and Individual Differences · 2003 · 144 citations

, , +14

Avoiding Degeneracy in Multidimensional Unfolding by Penalizing on the Coefficient of Variation

Frank Busing, Patrick J. F. Groenen, Willem J. Heiser · Psychometrika · 2005 · 136 citations

Cluster Differences Scaling with a Within-Clusters Loss Component and a Fuzzy Successive Approximation Strategy to Avoid Local Minima

Willem J. Heiser, Patrick J. F. Groenen · Psychometrika · 1997 · 96 citations

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