Algorithmic reliability was also evaluated because the methods used here are stochastic and iterative, such that model solutions vary across runs. Using ICASSO, each ICA was repeated 20 times to evaluate the reliability and stability of resultant components through bootstrapping and use of random start points (1,000 iterations). This step yields Iq values indexing compactness (solution variability across runs) and isolation (analogous to solution uniqueness) of component clusters.31 Iq values were satisfactory for all components (Iq range:.568–.999).31
