The hard palate is a thin horizontal bony plate of the skull, located in the roof of the mouth.
Defining Variables. Variables can be defined as any aspect of a theory that can vary or change as part of the interaction within the theory. In other words, variables are anything can effect or change the results of a study. Every study has variables as these are needed in order to understand differences.here is no limit to the number of variables that can be measured, although the more variables, the more complex the study and the more complex the statistical analysis. The most powerful benefit of increasing our variables, however, is control.
1 Mediator variables - In general, a given variable may be said to function as a mediator to the extent that it accounts for the relation between the predictor and the criterion. 2  Mediators explain how external physical events take on internal psychological significance.ge might be a moderator variable, in that the relation between SES and BSE could be stronger for older women and less strong or nonexistent for younger women. Education might be a mediator variable in that it explains why there is a relation between SES and BSE.