I. MacKenzie

Publications
Influence

Towards a standard for pointing device evaluation, perspectives on 27 years of Fitts' law research in HCI

R. W. Soukoreff, I. MacKenzie
Computer Science
Int. J. Hum. Comput. Stud.
1 December 2004

This paper makes seven recommendations to HCI researchers wishing to construct Fitts' law models for either movement time prediction, or for the comparison of conditions in an experiment. Expand

Phrase sets for evaluating text entry techniques

I. MacKenzie, R. W. Soukoreff
Computer Science
CHI Extended Abstracts
5 April 2003

In evaluations of text entry methods, participants enter phrases of text using a technique of interest while performance data are collected. Expand

Metrics for text entry research: an evaluation of MSD and KSPC, and a new unified error metric

R. W. Soukoreff, I. MacKenzie
Computer Science
CHI '03
5 April 2003

We describe and identify shortcomings in two statistics recently introduced to measure accuracy in text entry evaluations: the minimum string distance (MSD) error rate and keystrokes per character (KSPC). Expand

Text Entry for Mobile Computing: Models and Methods,Theory and Practice

I. MacKenzie, R. W. Soukoreff
Computer Science
Hum. Comput. Interact.
1 September 2002

Text input for mobile or handheld devices is a flourishing research area. Expand

The design and evaluation of a high-performance soft keyboard

I. MacKenzie, S. Zhang
Computer Science
CHI '99
1 May 1999

The design and evaluation of a high performance soft keyboardfor mobile systems are described. Expand

Extending Fitts' law to two-dimensional tasks

I. MacKenzie, W. Buxton
Computer Science
CHI '92
1 June 1992

Fitts' law, a one-dimensional model of human movement, is commonly applied to two-dimensional target acquisition tasks on interactive computing systems. Expand

Lag as a determinant of human performance in interactive systems

I. MacKenzie, C. Ware
Computer Science
CHI '93
1 May 1993

The sources of lag (the delay between input action and output response) and its effects on human performance are discussed. Expand

Accuracy measures for evaluating computer pointing devices

I. MacKenzie, Tatu Kauppinen, Miika Silfverberg
Computer Science
CHI
1 March 2001

In view of the difficulties in evaluating computer pointing devices across different tasks within dynamic and complex systems, new performance measures to elicit (sometimes subtle) differences among devices in precision pointing tasks. Expand

Fitts' Law as a Research and Design Tool in Human-Computer Interaction

I. MacKenzie
Computer Science
Hum. Comput. Interact.
1 March 1992

A review of six Fitts' law studies employing devices such as the mouse, trackball, joystick, touchpad, helmet-mounted sight, and eye tracker. Expand

Testing pointing device performance and user assessment with the ISO 9241, Part 9 standard

S. Douglas, A. Kirkpatrick, I. MacKenzie
Computer Science
CHI '99
1 May 1999

The IS0 9241, Part 9 Draft International Standard for testingcomputer pointing devices proposes an evaluation of performance andcomfort. Expand

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