Metrics

Question	Answer
Metrics	a way of measuring or evaluating a particular phenomenon or thing
Independent Variable	things you manipulate or control (Ex. interface style, number of menu items)
Dependent Variables	things you measure (Ex. time to perform task, number of errors)
Types of Metrics	Performance Metrics Issue-Based Metrics Self-Reported Metrics Behavioral & Physiological Metrics Combined & Comparative Metrics
Types of Metrics 1 - Performance	success of tasks --- time on task --- errors --- efficiency --- learnability (Ex. Binary Success Chart)
Types of Metrics 2 - Issues	[ Def. ] A common issue is evaluating how or when to end a task if the user is not successful -------------------------------------------------------------- [ Resolutions include... ] * User should complete a task or reach the point for assistance * A limited number of attempts * Set a time limit
Types of Metrics 3 - Errors	[ Def. ] User enters incorrect data or performs an incorrect action
Types of Metrics 4 - Efficiency

Resource summary

	Created by Oscar Jara over 5 years ago