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The six-item CTS symptoms scale and palmar pain scale in carpal tunnel syndrome.

• Isam Atroshi, Per-Erik Lyrén, Ewald Ornstein, Christina Gummesson
• The Journal of hand surgery
• 2011

PURPOSE To evaluate measurement properties of 2 brief outcome measures for carpal tunnel syndrome: the 6-item carpal tunnel symptoms scale (CTS-6) and the 2-item palmar pain scale (measuring severity… (More)

Using item response theory improved responsiveness of patient-reported outcomes measures in carpal tunnel syndrome.

• Per-Erik Lyrén, Isam Atroshi
• Journal of clinical epidemiology
• 2012

OBJECTIVE To compare responsiveness based on item response theory (IRT) with that based on conventional scoring for two patient-reported outcomes measures in carpal tunnel syndrome (CTS); the short… (More)

The successful test taker : exploring test-taking behavior profiles through cluster analysis

• Tova Stenlund, Per-Erik Lyrén, Hanna Eklöf
• 2018

To be successful in a high-stakes testing situation is desirable for any test taker. It has been found that, beside content knowledge, test-taking behavior, such as risktaking strategies, motivation,… (More)

Admission to university engineering programs in Sweden: a multipurpose approach.

• Simon Wolming, Per-Erik Lyrén
• Psychological reports
• 2004

This brief article provides a description of some new ideas about admission of university engineering students in Sweden. The current system of admission is based on upper-secondary school grades and… (More)

The 6-item CTS symptoms scale: a brief outcomes measure for carpal tunnel syndrome

• Isam Atroshi, Per-Erik Lyrén, Christina Gummesson
• Quality of Life Research
• 2009

To develop a psychometrically appropriate brief symptoms measure of carpal tunnel syndrome (CTS). Preoperative CTS 11-item symptom severity and 8-item functional status scales from 693 patients (71%… (More)

A Perfect Score Validity Arguments for College Admission Tests

• Per-Erik Lyrén
• 2009

College admission tests are of great importance for admissions systems in general and for candidates in particular. The SweSAT (Högskoleprovet in Swedish) has been used for college admission in… (More)

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