Oyvind Bjertnaes

H. Iversen, O. Bjertnaes, Kirsten Danielsen, 2014, International journal for quality in health care : journal of the International Society for Quality in Health Care.

The Patient-Reported Incident in Hospital Instrument (PRIH-I): assessments of data quality, test–retest reliability and hospital-level reliability

A. Lindahl, H. Iversen, O. Bjertnaes, 2013, BMJ quality & safety.

User-experience surveys with maternity services: a randomized comparison of two data collection models.

H. Iversen, O. Bjertnaes, Oyvind Bjertnaes, 2012, International journal for quality in health care : journal of the International Society for Quality in Health Care.

The association between survey timing and patient-reported experiences with hospitals: results of a national postal survey

Oyvind A Bjertnaes, O. Bjertnaes, Oyvind Bjertnaes, 2012, BMC Medical Research Methodology.

The Generic Short Patient Experiences Questionnaire (GS-PEQ): identification of core items from a survey in Norway

R. Olsen, H. Iversen, I. S. Sjetne, 2011, BMC health services research.

The General Practitioner Experiences Questionnaire (GPEQ): validity and reliability following the inclusion of new accessibility items.

A. Garratt, S. Hunskaar, T. Ruud, 2010, Family practice.

Rasch analysis of the Psychiatric Out-Patient Experiences Questionnaire (POPEQ)

A. Garratt, R. Olsen, H. Iversen, 2010, BMC health services research.

The Universal Patient Centeredness Questionnaire: reliability and validity of a one-page questionnaire following surveys in three patient populations

A. Garratt, H. Iversen, Kirsten Danielsen, 2016 .

A. Garratt, H. Iversen, Kirsten Danielsen, 2022 .

The GPs' Experiences Questionnaire (GPEQ): reliability and validity following a national survey to assess GPs' views of district psychiatric services.

A. Garratt, O. Bjertnaes, J. Nessa, 2007, Family practice.

Inpatients’ assessment of outcome at psychiatric institutions: an analysis of predictors following a national cross-sectional survey in Norway

H. Iversen, O. Bjertnaes, Oyvind Bjertnaes, 2018, BMJ Open.

Classification of patients based on their evaluation of hospital outcomes: cluster analysis following a national survey in Norway

Hilde Hestad Iversen, H. Iversen, Oyvind Bjertnaes, 2013, BMC Health Services Research.

Patient-reported experiences with hospitals: comparison of proxy and patient scores using propensity-score matching.

O. Bjertnaes, Oyvind Bjertnaes, 2014, International journal for quality in health care : journal of the International Society for Quality in Health Care.

The association between demographic factors, user reported experiences and user satisfaction: results from three casualty clinics in Norway

A. Garratt, S. Hunskaar, H. Iversen, 2010, BMC family practice.

The Norwegian patient experiences with GP questionnaire (PEQ-GP): reliability and construct validity following a national survey

H. Iversen, O. Bjertnaes, Kirsten Danielsen, 2017, BMJ Open.

The Universal Patient Centeredness Questionnaire: scaling approaches to reduce positive skew

A. Garratt, H. Iversen, O. Bjertnaes, 2016, Patient preference and adherence.

Patient-reported experiences with general practitioners: a randomised study of mail and web-based approaches following a national survey

H. Iversen, O. Bjertnaes, O. Holmboe, 2020, BMJ Open.

A randomized comparison of three data collection models for the measurement of parent experiences with diabetes outpatient care

T. Skrivarhaug, H. Iversen, O. Bjertnaes, 2018, BMC Medical Research Methodology.

Patient experiences with interdisciplinary treatment for substance dependence: an assessment of quality indicators based on two national surveys in Norway

A. Lindahl, J. Helgeland, H. Iversen, 2019, Patient preference and adherence.