The evaluator effect in usability tests. - Niels Ebbe Jacobsen; Morten Hertzum; Bonnie E. John (CHI Conference Summary, 1998)

The Evaluator Effect during First-Time Use of the Cognitive Walkthrough Technique. - Morten Hertzum; Niels Ebbe Jacobsen (HCI (1), 1999)

Usability inspections by groups of specialists: perceived agreement in spite of disparate observations. - Morten Hertzum; Niels Ebbe Jacobsen; Rolf Molich (CHI Extended Abstracts, 2002)

The Evaluator Effect: A Chilling Fact About Usability Evaluation Methods. - Morten Hertzum; Niels Ebbe Jacobsen (Int. J. Hum. Comput. Interact., 2003)

An intuitive text input method for touch wheels. - Morten Proschowsky; Nette Schultz; Niels Ebbe Jacobsen (CHI, 2006)

What you get is what you see: revisiting the evaluator effect in usability tests. - Morten Hertzum; Rolf Molich; Niels Ebbe Jacobsen (Behav. Inf. Technol., 2014)