Objectives: Although several questionnaires assessing fear of movement exist, it is still a
challenge to identify individuals who might benefit more from exposure for chronic pain than
from other psychological approaches and vice versa. Psychological approaches to chronic
pain cannot advance toward the often called-for “tailored approaches” because of limited
knowledge about treatment predictors. Our aim was to evaluate the additional predictive
value of avoidance behavior based on behavioral observation. Methods: This study …

To the Editor: We read with interest the recent paper titled “Behavioral test (BAT-Back)—
Preliminary Evidence for a Successful Predictor of Treatment Outcome After Exposure
Treatment for Chronic Low Back Pain.” This study had the commendable aim of investigating
self-report and behavioral measures as predictors of treatment outcome in patients with
chronic low back pain receiving exposure therapy. The study background describes the
importance of identifying “those patients who might benefit more from exposure therapy than …