Expectations

For these questions, you are given brief summaries of research scenarios and specific hypotheses. You need to choose which statistical test is appropriate to analyze the hypothesis given the context of the research scenario. Each scenario is worth 5 marks. 1 mark is for correctly identifying the appropriate statistical test. An additional 4 marks are awarded for justifying your answer with respect to 1. The type of data collected by researchers (i.e., continuous, ordinal, or nominal) 2. Whether researchers are investigating an association/relationship between at least two variables or are instead investigating differences between conditions using the same variable 3. If applicable, the number of conditions and/or factors 4. If applicable, the independence/dependence of observations between conditions You may format your answers as either short paragraphs or bullet lists.

Question 2

A zoologist was interested in investigating whether non-human primates (NHPs) experience attentional "pop-out"; that is, when you are visually searching for something in a cluttered environment, the object you are looking for can either be difficult to find or is immediately obviousit "pops out". Therefore, they constructed an experiment in which NHPs were trained to locate an object amongst clutter and he measured how long it took the NHPs to locate the object. In the baseline condition, the object was presented alone. The researcher also included 2 additional conditions in which the object was presented amongst low-levels of clutter or high-levels of clutter. The NHPs completed each condition in randomized order. If NHPs experience "pop-out", locating the object should take equally as long in in the baseline condition as it does in both cluttered conditions. Which analysis should the zoologist perform?