VFQ-25 With and Without Rasch Scoring Assessed Using Simulated Data in Trials Comparing Laser With Anti-VEGF for Diabetic Retinopathy. | Synapse
January 23, 2026
VFQ-25 With and Without Rasch Scoring Assessed Using Simulated Data in Trials Comparing Laser With Anti-VEGF for Diabetic Retinopathy.
Puntos clave
To evaluate the impact of Rasch calibrated scores compared to raw scores on psychometric properties for the VFQ-25 in diabetic retinopathy trials.
Compared Rasch calibrated scores and raw scores based on simulated data.
Focused on trials assessing laser and anti-VEGF treatments.
Employed psychometric analyses to determine score effectiveness.
Rasch scores showed more desirable psychometric properties than raw scores.
Using raw scores may still be acceptable for specific analysis contexts.
Differences were observed in how scores reflected treatment outcomes.
Resumen
Use of Rasch calibrated scores is recommended for desirable psychometrics, but it may be acceptable to use the raw scored original composite instrument.