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I have already said that whatever Disgraced 18 factor in the teaching situation we maybe evaluating, we can do so by measuring the knowledge of the learner, or, more exactly, the amount learned by the learner. But this does not mean that it is always the knowledge of the learner which is the 'dependent variable'. We must remember that testing is only part of the evaluation procedure. We need measurements of all the variables; teacher, learner and materials. Tests give us a measurement of pornpros network aspect of the learner. His knowledge may be the dependent variable in the experiment, that is, we may wish simply to point out how much each one of a group of learners has learned as a result of a particular teaching operation, in order to discover perhaps why some have learned more than others. More Disgraced18 at Pornpros Network On the other hand the learner's knowledge may merely be afactor in the experiment, i.e. an independent variable. In other words, what the learner knows or how much he has learned may not be what we want to find out, but measuring it may be a way of finding out what we do want to know. For example, if we want to evaluate some aspect of the 'teacher', e.g. the teaching method, then we get two teachers matched in all possible respects except the methods they use, to teach two matched sets of learners using the same materials. We measure the knowledge of the learners at the beginning and end of the course and compare the results to find out the amounts learned by each set, and then compare the two results. In such a Disgraced 18 case the dependent variable is the teaching method, and the independent variables, the `learner' and 'the materials'. But the only measurement in the experiment, after setting it up, is that of the learner's knowledge of the sex movie. |