Imagine you\'re a psyco-pharmacological researcher interested in whether or not

Question

Imagine you're a psyco-pharmacological researcher interested in whether or not common antidepressant medication has any effect on the scores of human participants performing a task of ESP (Extra Sensory Perception) sensitivity. You randomly assign 50 participants to one of two groups: 25 participate in the ESP task having received an oral dose of the antidepressant prior to testing, Group 1; the remaining 25 participants receive a placebo prior to testing, Group 2. Is this a one-tailed H_A or a two-tailed H_A? one-tailed two-tailed

Explanation / Answer

The given information of the problem statement is belongs to two tailed hypothesis because the statement is asking common antidepressant medication has any effect on the scores of human participants performing a task of ESP

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