According to standard convention, a researcher must be ____% sure that the difference she observed between experimental conditions was not simply the result of chance in order to conclude that the difference is statistically significant.

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According to standard convention in most scientific research, a researcher must be 95% sure (or have a p-value less than 0.05) to conclude that the observed difference is statistically significant.

According to Standard Convention, a Researcher Must Be ____% Sure