Concepedia

Development and psychometric evaluation of the patient assessment of upper gastrointestinal symptom severity index (PAGI-SYM) in patients with upper gastrointestinal disorders

Anne M. Rentz, Peter J. Kahrilas, Vincenzo Stanghellini, Jan Tack, N. J. Talley, Christine de la Loge, Elyse Trudeau, David L. DuBois, Dennis A. Revicki

Quality of Life Research · 2004 · 405 citations · 47 references

Concepts

NursingClinical SciencesGastroenterologySymptom ScienceFunctional Gastrointestinal DisordersGastrointestinal AssessmentGastrointestinal DiseaseIrritable Bowel SyndromeSymptom AssessmentSymptom MeasurementFunctional Gastrointestinal Disorder AssessmentGastrointestinal Assessment ScalesGastrointestinal Symptom ScoringPsychometric Design EvaluationPsychometric QualityPsychometric ReliabilitySymptom-based Diagnosis

References

47

Coefficient Alpha and the Internal Structure of Tests

Lee J. Cronbach · Psychometrika · 1951 · 43.2K citations · Full text

Social Sciences, Educational Assessment, Educational Measurement +14

Measurement of health status

Roman Jaeschke, Joel Singer, Gordon Guyatt · Controlled Clinical Trials · 1989 · 4.9K citations

Pharmacy, Health Sciences, Health Assessment +10

Fundamentals of item response theory

Choice Reviews Online · 1992 · 3.5K citations

Education, Educational Assessment, Educational Measurement +17

Quality of life and pharmacoeconomics in clinical trials

Joseph L. Pater · Controlled Clinical Trials · 1996 · 2.4K citations

Pharmacy, Pharmacoeconomics, Pharmacotherapy +12

GSRS?A clinical rating scale for gastrointestinal symptoms in patients with irritable bowel syndrome and peptic ulcer disease

Jan Svedlund, Ingemar Sj�din, G. Dotevall · Digestive Diseases and Sciences · 1988 · 1.5K citations

Medicine, Clinical Sciences, Gastroenterology +15