Question

A comparative psychologist (animal behavior researcher) wants to determine whether parrots have emotions and use them in their daily lives. He studies a collection of 12 African Gray Parrots in pairs and collects the number of times that the parrots in the pairs make aggressive actions against one another following a vocalization. He also records the vocalizations themselves and scores their intensity using digital audio analysis software. He hypothesizes that as the intensity of the vocalizations changes so does the aggression and therefore, perhaps, the emotions of the parrots. A. What statistic can he use to determine whether or not a relationship exists between vocalization intensity and aggressive acts? B. Report the result in proper statistical reporting format. Assume he obtained a value for this statistic of +0.59 and he choose an alpha of 0.05. C. Express in an English sentence what the cognitive psychologist could conclude if he obtained a value of +0.59 for this statistic?

Answer 1

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