Skip to content

Your Cart


You have 0 items in your cart.

Register Sign in Wishlist
Gross Motor Function Measure (GMFM-66 and GMFM-88) User's Manual

Gross Motor Function Measure (GMFM-66 and GMFM-88) User's Manual

$95.00 (P)

Part of Clinics in Developmental Medicine (Mac Keith Press)

  • Date Published: December 2002
  • availability: Refer to Blackwell Publishing
  • format: Mixed media product
  • isbn: 9781898683292

$ 95.00 (P)
Mixed media product

Refer to Blackwell Publishing
Unavailable Add to wishlist

Looking for an examination copy?

If you are interested in the title for your course we can consider offering an examination copy. To register your interest please contact providing details of the course you are teaching.

Product filter button
About the Authors
  • The Gross Motor Function Measure (GMFM) is the first evaluative measure of motor function designed for quantifying change in the gross motor abilities of children with cerebral palsy. The new version (GMFM-66) of this widely used and now standard outcome assessment tool is completely revised, largely new, and has been improved through Rasch analysis. GMFM-66 transforms the standard GMFM into an interval measure; provides an 'item map' of the relative difficulty among items; and includes a user-friendly, computer-assisted software program to aid in scoring and interpretation of GMFM data. This is included, with a printed scoresheet, on a CD-ROM enclosed in the book.

    • Completely revised and rewritten to be an interval rather than ordinal measure
    • Software to aid scoring and interpretation included on a CD-ROM
    • The international standard in measurement of the motor abilities of children with cerebral palsy
    Read more

    Reviews & endorsements

    "The book very clearly and understandably presents the necessary mathematical and statistical background...This is a hands-on, practically orientated book. It is easy to read, and clearly written, with precise descriptions and with well-structured page layout...Everybody who is interested in monitoring motor development in children should read this book." European Journal of Paediatric Neurology

    "GMFM has proved to be a valuable tool for paediatric physiotherapists, and both clinicians and researchers will appreciate this more versatile updated version." Physiotherapy

    See more reviews

    Customer reviews

    Not yet reviewed

    Be the first to review

    Review was not posted due to profanity


    , create a review

    (If you're not , sign out)

    Please enter the right captcha value
    Please enter a star rating.
    Your review must be a minimum of 12 words.

    How do you rate this item?


    Product details

    • Date Published: December 2002
    • format: Mixed media product
    • isbn: 9781898683292
    • length: 230 pages
    • copublisher: Mac Keith Press
    • dimensions: 250 x 178 x 26 mm
    • weight: 0.845kg
    • contains: 10 colour illus. 24 tables
    • availability: Refer to Blackwell Publishing
  • Table of Contents

    1. Brief overview of the GMFM: what is the GMFM?
    How is the GMFM administered?
    Who is the GMFM appropriate for?
    How is the GMFM scored?
    How long does it take?
    Where should it be administered?
    What equipment is needed?
    What qualifications are required to administer and score the GMFM? 2. Conceptual background: cerebral palsy
    Measuring gross motor function: General issues in measurement
    Purposes of measures
    Characteristics of an evaluative measure
    Norm-referenced vs. criterion-referenced tests
    Level of measurement: ordinal vs. interval data
    Rasch analysis: modifying an ordinal measure to give interval scores
    Validation of an evaluative measure
    Content validity
    Criterion validity
    Construct validity
    3. Development and validity of the GMFM-88: Test construction
    Item selection
    Item scoring
    Validity of the GMFM-88
    Content validity
    Pre-testing of therapists
    The validation study
    Validation study sample
    Subject sample
    Therapist sample
    Face validity
    Validation of responsiveness
    Clinical characteristics of stable and responsive groups
    Determining a clinically important change
    Intra-rater and Inter-rater reliability
    Reliability of change
    Training users on the GMFM
    How can I assess reliability in the absence of criterion testing?
    Who should use the GMFM? 4. Development and validation of the GMFM-66: Rationale for applying Rasch analysis to the GMFM-88
    Background to Rasch analysis and item response theory
    Determining item difficulty and child ability
    Goodness of fit statistics
    Available Rasch models
    Assumptions of the Rasch model
    Sample-free and test-free measurement
    Application of Rasch analysis to the GMFM
    Study sample
    Method of scoring
    Reliability of the GMFM-66
    Reliability of the item calibrations and child ability scores of the GMFM-66
    Reliability of item difficulties estimated with different samples (sample-free measurement)
    Reliability of item difficulties over time (stability)
    Reliability of child ability scores using different items (Test-free measurement)
    Validity of the GMFM-66
    Construct validity and responsiveness
    Responsiveness study sample
    Responsiveness analysis
    5. Administration and scoring guidelines for GMFM-88 and GMFM-66: Overview
    Examiner qualifications
    Time required
    General administration guidelines
    Factors that may interfere with the validity of the scores
    Specific scoring administration guidelines for children with Cerebral palsy
    Scoring single items
    Prior to completing a total score
    Determining a total score for the GMFM-88
    Determining a goal total score(when using the GMFM-88)
    Determining a total score for the GMFM-66 (for children with cerebral palsy only)
    Determining summary scores when testing with AIDS/Orthoses
    Guidelines for testing with AIDS/Orthoses
    Testing with AIDS
    Testing with Orthoses
    Scoring with AIDS/Orthoses
    Determining summary scores when testing with AIDS/Orthoses
    Administering and scoring the GMFM-88 with children with Down Syndrome
    Examiner qualifications
    Time required
    General administration guidelines for children with Down Syndrome
    Specific scoring administration Guidelines for children with Down Syndrom
    Scoring single items
    Scoring items automatically
    Reported scores
    Determining a total score and goal total score
    Determining a total reported score
    GMFM-88 and GMFM-66 Item scoring guidelines
    Lying and rolling
    Crawling and kneeling
    Walking, Running and jumping
    Explanation of terms
    6. Interpretation and uses of the GMFM-88 and GMFM-66: Case scenario of Susie
    How to decide whether to use the GMFM-88 Or the GMFM-66?
    Interpreting scores from the GMFM-88
    Interpreting scores from the

  • Authors

    Dianne J. Russell, McMaster University, Ontario

    Peter L. Rosenbaum, McMaster University, Ontario

    Lisa M. Avery, CanChild Centre of Childhood Disability Research, Hamilton

    Mary Lane, CanChild Centre of Childhood Disability Research, Hamilton

Sign In

Please sign in to access your account


Not already registered? Create an account now. ×

Sorry, this resource is locked

Please register or sign in to request access. If you are having problems accessing these resources please email

Register Sign in
Please note that this file is password protected. You will be asked to input your password on the next screen.

» Proceed

You are now leaving the Cambridge University Press website. Your eBook purchase and download will be completed by our partner Please see the permission section of the catalogue page for details of the print & copy limits on our eBooks.

Continue ×

Continue ×

Continue ×

Find content that relates to you

Are you sure you want to delete your account?

This cannot be undone.


Thank you for your feedback which will help us improve our service.

If you requested a response, we will make sure to get back to you shortly.

Please fill in the required fields in your feedback submission.