The guidelines by Baron and Kenny (1986) were followed, and, in line with Aiken and West (1991),
the continuous predictor variables were centered prior to the two - way interaction analysis.
The predicted disability scores were at study midpoint (i.e., 3 years) when all
the continuous predictor variables were at their means.
Not exact matches
An intent - to - treat analysis was conducted using univariate analysis of covariance for
continuous variables and multivariate analysis of covariance for
continuous variables in which the
predictor variable comprised multiple scales.
Finally, as suggested by Bryk and Raudenbush (1992),
continuous predictor and outcome
variables were centered around the mean of each subsample to facilitate data interpretation.
The second example of post-hoc probing involves a two - way interaction of two
continuous variables and is based on an analysis of observational data (as
predictors) and teacher - report grades (as an outcome).
We used linear mixed regression models with random intercept and slope (random effects models) to examine the extent to which the
predictor variables considered influenced changes in
continuous CBCL total, internalising, and externalising T scores from ages 2 to 14.