A range of analysis techniques which can examine quantitative data in more depth than can usually be obtained from a basic cross-analysis of the data by, for example, age, sex and social grade. The essence of this range of approaches is that the information is analysed in a way that permits patterns to emerge from within the data itself - ie based on the responses of the informants - rather than being imposed in advance, perhaps incorrectly or simplistically, by the researcher.
The study of two or more effects (“dependent variables”) at one time. – A measure of how many people or things in a group were studied by the researcher; followed by an equal sign and a numeral.
This refers to analysis of a sample (in this context, a protein) by more than one independent method of analysis. For example, a classical 2-D gel provides two independent, orthogonal parameters, pI and apparent size. MALDI of the intact protein from the gel provides a third dimension, mass, which is an intrinsic property of the protein and is similar, but more useful, than the relative size derived from the SDS dimension. MALDI of the CNBr fragments of the protein directly from the gel provides a true fourth dimension of analysis.