The advantages include less cueing because the tests differ. Disadvantages include history and maturation factors.
6. Positive approach is empirically based and insists that measures must proceed according to strict evidence and their validity must be generated from experimental (or quantitative) research. The advantages are that this accords greater validity and reliability. The disadvantages are that the complexity of human factors is inadequately addressed by the rigidity and inflexibility of the experimental method. The qualitative (or non-positivistic) on the other hand, insists that humans cannot be measured or tested in a laboratory environment. The results are, however, less reliable, and oftentimes more subjective.
7. Cross sectional research is research that is conducted over different population groups at a single space in time. For instance, assessing whether people of different cultures vary in the way that they walk. Longitudinal research is conducted on one population over a period of time for instance to see whether this style of walking changes over the years and if so in which way.
8. Social workers do have an ethical responsibility to engage in research since information changes constantly,...
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