Abstract
The logic and advantages of unobtrusive measures are briefly reviewed. The literature on unobtrusive measures is then summarized under four large classes-physical traces, archives, simple observations, and measures gathered with hardware. A small number of methods also fall into a residual category. Each class of methods is discussed briefly and recommendations and/or problems with its use are discussed. This is followed by a listing of the measures in that category, an indication of what variable is being indexed and applicable references.
Get full access to this article
View all access options for this article.
