• EORTC WISP guideline

    The main purpose of this document is to provide guidance on how to use and interpret the open-ended ‘Write In three Symptoms/Problems’ (WISP) instrument when it is used to supplement the EORTC questionnaires or modules. This guideline assists researchers and clinicians who want to collect and codify open-ended responses obtained from WISP.

  • QLU-C10D

    EORTC QLU-C10D Manual

    The QLU-C10D user manual provides some theoretical background on this different measurement concepts, gives detailed information and guidance on the proper legal and scientific use of the EORTC QLU-C10D, including different modes of administration, scoring procedures, and results reporting.

  • EORTC Item Library User Guidelines (2022)

    This manual provides guidance on the use of the EORTC Item Library for the creation of customized questionnaires (item lists).

  • Module Development Guidelines (2021)

    This manual describes the process of development of new questionnaires.

  • Scoring Manual

    This manual provides information that is needed for scoring the EORTC core questionnaire and associated modules.

    For the scoring algorithm to generate the summary score please click here.

  • Module Development Guidelines (2011)

    This manual covers the process for developing new questionnaires, describing the standard procedure of four phases of development and testing. An updated version was released in 2021 and questionnaires whose development (or relevant phase of development) started after the release of the updated version follow the updated version.

  • Translation Procedure Manual (2017)

    This manual focuses on the EORTC Translation Procedure, describing in detail the translation and cultural adaptation process that is followed for the development of new language versions of EORTC questionnaires.

  • Reference Values Manual

    This manual contains information about normative scores and reference scores across various cancer populations.