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Statistics In Research Methods Exam Questions With Correct Answers.

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©THEBRIGHT EXAM STUDY SOLUTIONS 8/22/2024 12:54 PM Statistics In Research Methods Exam Questions With Correct Answers. What are the advantages of primary data? - answerresearcher provided with exactly the information needed what are the disadvantages of using primary data? - answertime consum...

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  • August 29, 2024
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©THEBRIGHT EXAM STUDY SOLUTIONS 8/22/2024 12:54 PM


Statistics In Research Methods Exam
Questions With Correct Answers.


What are the advantages of primary data? - answer✔✔researcher provided with exactly the
information needed

what are the disadvantages of using primary data? - answer✔✔time consuming and resource
intensive

what are the disadvantages of using secondary data? - answer✔✔no direct control over research
quality may be compromised

what are the advantages of secondary data? - answer✔✔time and effort needed to gather info is
reduced
more cost effective

what are the disadvantages of the mean? - answer✔✔uses all the data but the outliers as it can be
badly distorted
can't be used with extreme values

what are the disadvantages of the median? - answer✔✔less sensitive to variations in data so not
good for using with a small data set

what are the disadvantages of the mode? - answer✔✔sometimes a data set may not have a most
frequent value

what are the advantages of the range? - answer✔✔takes extreme scores into account

what are the disadvantages of the range? - answer✔✔most data is ignored
may not reveal the full extent of the distribution

what are the advantages of standard deviation? - answer✔✔shows the range temperature
compared to the mean:
small = consistent
large = varied results

, ©THEBRIGHT EXAM STUDY SOLUTIONS 8/22/2024 12:54 PM

how do you calculate the standard deviation? - answer✔✔1. table of data
2. calculate mean
3. subtract mean from each number in sample (X-x ̅)
4. square (X-x ̅)
5. add all the squared numbers together
6. divide the sum by n-1 to give variance
7. square root the variance

What is a parametric test? - answer✔✔A test that assumes the populations drawn from are
normally distributed

What is a non-parametric test? - answer✔✔Distribution free tests, used when assumptions are
not met:


Data does not come from a normal distribution
Variances are not assumed to be the same in different groups
Data is nominal or ordinal
Assumptions of ANOVA cannot be met

how do you choose to carry out spearman's rho? - answer✔✔must have correlation

how do you choose to carry out binomial sign? - answer✔✔experiment
repeated measures
nominal

how do you choose to carry out wilcoxon? - answer✔✔experiment
repeated measures
ordinal or interval data

how do you choose to carry out chi-squared? - answer✔✔experiment
independent groups
nominal

how do you choose to carry out mann whitney - answer✔✔experiment
independent groups

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