Related Experiment Video
Updated: May 29, 2026

09:16
Use of a Video Scoring Anchor for Rapid Serial Assessment of Social Communication in Toddlers
Published on: March 14, 2018
Inter-rater reliability of the early functional abilities scale.
Kristin Alvsåker1, Sten M Walther, Ingerid Kleffelgård
1Intensive Care Unit, Oslo University Hospital Ullevål, Oslo, Norway. Kristin.Alvsaker@oslo-universitetssykehus.no
Journal of Rehabilitation Medicine
|September 1, 2011
Summary
The Early Functional Abilities (EFA) scale shows good inter-rater reliability for most items among rehabilitation teams. Training is recommended for consistent use, with a suggestion to refine vegetative function items.
Area of Science:
- Rehabilitation Medicine
- Neuroscience
- Clinical Assessment Tools
Background:
- Accurate functional assessment is crucial for patients with traumatic brain injury (TBI).
- The Early Functional Abilities (EFA) scale is used in early rehabilitation settings.
- Understanding the reliability of assessment tools among different healthcare professionals is vital for consistent patient care.
Purpose of the Study:
- To evaluate the inter-rater reliability of the Early Functional Abilities (EFA) scale.
- To determine the consistency of EFA scoring among different members of the rehabilitation team.
Main Methods:
- An observational study design was employed.
- Twenty-four patients with TBI in an intensive care unit's early rehabilitation phase were assessed.
- The EFA scale was administered by four rehabilitation professionals; inter-rater reliability was analyzed using linear weighted kappa statistics.
Main Results:
- Overall weighted kappa values for EFA items ranged from 0.27 to 0.60.
- Sensorimotor functional items demonstrated the highest agreement (mean kappa 0.68–0.76).
- Vegetative ability, position tolerance, and wakefulness items showed lower agreement (kappa 0.49, 0.33, 0.49). Occupational therapists and physiotherapists had better agreement than physicians and nurses.
Conclusions:
- The EFA scale demonstrates good inter-rater reliability for most items among the rehabilitation team.
- The EFA scale can be utilized by all interdisciplinary team members following appropriate training.
- A revision to reduce items within the vegetative functional domain is recommended to improve reliability.
