Quants
- Created by: Rhi765
- Created on: 22-11-22 20:33
Other questions in this quiz
2. Which of the following is true about ecological validity?
- None of the other answers is correct
- Ecological validity refers to the applicability of findings to the real world
- All laboratory experiments have low ecological validity
- Ecological validity refers to how much a study’s methods resemble real-life situations
3. Consider a frequency distribution in which high scores are most frequent (i.e. bars on the graph are highest on the right hand side). Choose the appropriate statement considering which moments of the distribution would be most relevant.
- the first and third (mean and skewness) because you can identify the statistical average and the significance of the negative skew
- the first and second (mean and variance) because you can identify the statistical average and the spread of the data
- the first and third (mean and skewness) because you can identify the statistical average and the significance of the positive skew
- the first and fourth (mean and kurtosis) because you can identify the statistical average and the significance of the peakedness of the data
4. A researcher has gathered information on reading comprehension in children before and after starting music lessons. The researcher believes that learning to play a musical instrument will improve reading comprehension. Data on reading comprehension (% sco
- Assuming homogeneity of variance, a Wilcoxon Signed Rank Test because the data is paired and not normally distributed
- Assuming homogeneity of variance, a dependent samples t-test because the data is not paired and normally distributed
- Assuming homogeneity of variance, an independent samples t-test because the data is paired and normally distributed
- Assuming homogeneity of variance, a Mann Whitney U test because the data is not paired and not normally distributed
5. What are phi and Cramér’s V used for?
- They are measures of the strength of association between two continuous variables
- They are measures of the strength of association between two categorical variables
- They are used as a correction when the assumption of independence has been violated
- They can be used as remedies when the assumption of expected frequencies has been violated
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