Two types of information are provided to aid
users of ALSCAL in evaluating goodness of fit in
nonmetric two-way and three-way multidimensional
scaling analyses. First, equations are developed for
estimating the expected values of SSTRESS and
STRESS for random data. Second, a table is provided
giving mean values of SSTRESS and STRESS
for structured artificial data. This information provides
the empirical investigator with a second comparative
basis for evaluating values of these indices.
MacCallum, Robert. (1981). Evaluating goodness of fit in nonmetric multidimensional scaling by ALSCAL. Applied Psychological Measurement, 5, 377-382. doi:10.1177/014662168100500311
MacCallum, Robert C..
Evaluating goodness of fit in nonmetric multidimensional scaling by ALSCAL..
Retrieved from the University of Minnesota Digital Conservancy,
Content distributed via the University of Minnesota's Digital Conservancy may be subject to additional license and use restrictions applied by the depositor.