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- Bad. Although this is a very interesting question, the word suffer is unclear and vague. This is typical of a certain type of poor research question because is difficult to define the meanings of terms used in stating the question. For example, does the question mean 'Do insects suffer (i.e. feel pain) when they have cancer?' or 'Is it possible that insects develop cancer?'
- Bad. It is very difficult to measure the effect of talking because talking itself is something that cannot be measured.
- Bad. High is a vague term, so one can only guess an answer to the question. The question only becomes useful if it is stated more specifically, e.g. 30mg/L rather than high or small.
- Good. Both the independent variable (water temperature) and the dependent variable (sugar solubility) can be measured.
- Bad. Again — effect of music and emotion are highly subjective terms that are difficult to measure.
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