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Technique/method Method allows results to be collected. More detail needed so that the steps in the method are clear. The of steps need to be changed. Equipment and quantities need to be checked. A clear method, appropriate technique that will collect valid data. Repeats or comparison of results with others needs to be considered. A detailed plan that will allow the collection of precise and reliable data. Validity of results Some reference to controlling variables is given. At least one has a clear method for control or monitoring of a variable. A key variable has been missed Method of control needs more All significant control variables have been identified with a clear method for control or monitoring. Reasons for controlling variables have been
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