| Abstract: | In this paper, we describe two experiments in which we assessed the validity of phased narrowing, a new process tracing technique
designed to help researchers better understand multiattribute evaluation processes. Specifically, in Experiment 1 we examined
the distribution of choices across successive decision stages and the attitudes and perceptions of the decision maker. In
Experiment 2, we examined a variety of process data generated via a computerized information monitoring program called Mouse-Trace.
Comparisons, in all cases, are made between experimental conditions that do and do not require decision makers to narrow their
choices across successive stages. Taken together, the data indicate that there is little evidence to doubt the validity of
a less restrictive version of phased narrowing which allows subjects to choose their own number of options to include at each
stage. These results are encouraging for researchers who plan to use the technique to study decision making in its natural
context. |
