Editing Statistical assumption (section)

==Checking assumptions==
Given that the validity of any conclusion drawn from a statistical inference depends on the validity of the assumptions made, it is clearly important that those assumptions should be reviewed at some stage. Some instances—for example where [[missing data|data are lacking]]—may require that researchers judge whether an assumption is reasonable. Researchers can expand this somewhat to consider what effect a departure from the assumptions might produce. Where more extensive data are available, various types of procedures for [[statistical model validation]] are available—e.g. for [[regression model validation]].