* not completed

. Categorical data (e.g., different shades of colors) data is best described as...

ratio. correct incorrect

nominal. correct incorrect

ordinal. correct incorrect

interval. correct incorrect

* not completed

. Which of the following describe when the Wilcoxon signed rank test is a good alternative test to use instead of t-tests?

When the data is normally distributed. correct incorrect

When the data is symmetric. correct incorrect

When you have data of the whole population. correct incorrect

When the data is highly skewed. correct incorrect

* not completed

. Skewed distributions are...

non-normal. correct incorrect

symmetrical. correct incorrect

Uniform. correct incorrect

Due to bad sampling techniques. correct incorrect

* not completed

. Which of the following describes an advantage of the Wilcoxon signed-rank test over its parametric equivalent?

the Wilcoxon signed-rank test does not require pairs matched data correct incorrect

the Wilcoxon signed-rank test requires ranked data instead of unranked data correct incorrect

the Wilcoxon signed-rank test makes fewer assumptions about the distribution of the data correct incorrect

the Wilcoxon signed-rank test is more likely to find significant effects correct incorrect

* not completed

. If you have 22 pairs of participants what is your critical value for a one-tailed Wilcoxon Signed-rank test at α= .01?

66 correct incorrect

56 correct incorrect

49 correct incorrect

43 correct incorrect