Results
Preliminary analyses
Sample size
The size of the data set satisfied a number of criteria: number of cases $5 £ number of
variables (Lewis, 1995), N 2 n 2 1 $ 50 (where N ¼ number of participants and
n ¼ number of variables; Lawley & Maxwell, 1971), and a ratio of at least 2:1
participants to variables (Kline, 1994).