RT @SpringerPBH: .#openaccess : Assessing the equivalence of Web-based and paper-and-pencil questionnaires using differential item and test…
.#openaccess : Assessing the equivalence of Web-based and paper-and-pencil questionnaires using differential item and test functioning (DIF and DTF) analysis, in new Quality of Life Research @ISOQOL #QLR https://t.co/1XUl4MkvJy
Assessing the equivalence of Web-based and paper-and-pencil questionnaires using differential item and test functioning (DIF and DTF) analysis: a case of the Four-Dimensional Symptom Questionnaire (4DSQ). https://t.co/9dUDxFNYyG https://t.co/ka20HZuwgh
#HealthEconJA Assessing the equivalence of Web-based and paper-and-pencil questionnaires using differential item and test functioning (DIF and DTF) analysis: a case of the Four-Dimensional Symptom Questionnaire (4DSQ) https://t.co/3O6TpJ5gbS