Thirty dogs were selected at random from those residing at the humane society la

Question

Thirty dogs were selected at random from those residing at the humane society last month. The 30 dogs were split at random into two groups. The first group of 15 dogs was trained to perform a certain task using a reward method. The second group of 15 dogs was trained to perform the same task using a reward-punishment method. The investigator of this study will have two sets of data: the learning times for the dogs trained with the reward method and the learning times for the dogs trained with the reward-punishment method. Is this a matched (paired) or independent samples design? Explain.

Explanation / Answer

Independent samples method, since both the samples are distinct.

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