Measurement of Task Performance on the Basis of the Time/Event Matrix: An Extension of Methods.
Innovations in Measurement Technology
The time/event matrix technique was primarily developed to measure the interrelationships among actions over time and the effects of information flow that precedes those actions.
For purposes of analysis, it is important to establish clear relationships (a) between inputs and subsequent output decisions and (b) among which are causally or strategically related…
Time in the matrix is plotted horizontally. There are no particular restrictions on the gradations to be used (no matter whether time proceeds normally or is - as in some simulations - expanded or condensed), except that events that occur sequentially and independently of each other must appear on different time points.”
The only perfect representation of these relationships exists in the [brain] of the decision-maker(s) at the moment the relevant decisions are made. Any measure of those relationships can, consequently, be subject to some error.
Decision-making tasks and settings differ. Consequently, the types of decisions employed differ as well. Groupings of decisions (decision types) must be established separately for each general group of decision-making situations.
The selection of decision-making [types] is best done by experts in the field [and] should be inclusive; where possible of approximately equal breadth, and conceptually meaningful and consistent. Decision types should provide the potential for use by the decision-maker.”
