Suppose that a group of six different researchers were recording the amount of time it takes for a particular rat to run down a six-foot long alley way.
Using stopwatches, they determine that all of the researchers end up with slightly different measures of time, even though they were all simultaneously observing the exact same rat. In research design, what source of variance would account for these differences in recorded times?
a. Measurement error
b. External validity
c. Manipulation check
d. Invasive variables
Question 2
Which of the following issues would not be listed as one of the difficulties of the IRB process?
a. The process is sometimes a rather lengthy one.
b. Because some of the specified techniques may be very specialized, some non-
specialists might not understand the importance of the proposed study.
c. Some believe that the IRB process favors applied research over basic research.
d. none of the above
The mammalian heart and the route blood takes through it.
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