A t-test may be conducted to detect differences between two groups in which participants are only tested once.

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A t-test can be conducted to detect differences between two groups in which participants are only tested once. The t-test evaluates the difference in means between two groups and calculates the probability that the difference occurred by chance. This can be done even if the participants were only tested once and not repeatedly.

A T-Test May Be Conducted to Detect Differences Between Two