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Descriptive and inferential statistics quiz
Descriptive and inferential statistics quiz
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A level linear Psychology data analysis test
Flashcards
30 cards
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Questions
30
Answers
1
20% of a psychology class fail the exam, what is this as a fraction?
1/20th
2/10ths
1/5th
2/5ths
2
Which type of data is the mode most likely to be used with?
Nominal
Ordinal
Ratio
Qualitative
3
Which of the following is NOT a requirement of a parametric test?
Similar variances
Interval/ ratio data
Nominal data
Normal distribution of scores
4
What statistical test would you use with ordinal data and independent measures design?
Mann-Whitney U test
Wilcoxon signed ranks
Spearman's rho
Chi-square test
5
What is the range of the following scores? 2, 4, 5, 8, 10, 15, 25, 29
25
29
27
4
6
When would you NOT use the mean as a measure of central tendency?
When you had a normal distribution
When you had a skewed distribution
When you wanted to find the average
When you had extreme scores
7
What type of distribution is this?
A normal distribution
A positively skewed distribution
A negatively skewed distribution
A positive correlation
8
What is the mean of the following scores? 5,10,5,8,2
6
3
5
10
9
Which non-parametric statistical test would you use with a correlation?
Mann-Whitney U test
Sign test (Binomial)
Spearman's rho
Wilcoxon signed ranks test
10
If you had a matched pairs design and ordinal data, what test would you use?
Spearman's rho test
Chi-square test
Mann-Whitney U test
Wilcoxon signed ranks test
11
In this formula, what does the 'n' stand for?
Number of participants in one condition
Negative correlation
No scores
Number of participants in both conditions combined
12
What type of graph is this?
Pie chart
Scatergraph
Frequency polygon
Bar chart
13
Which parametric statistical test would be used with ratio data and a correlation?
Pearson's Product Moment test
Spearman's rho
Binomial Sign test
Related t-test
14
Would a probability level of p<0.05 be significant?
Probably not
Possibly maybe
No
Yes
15
Would a probability level of p>0.05 be significant?
No
Probably
Possibly
Yes
16
A researcher records the reaction time of participant's. This is.....
Interval data
Nominal data
Ordinal data
Ratio data
17
What is the median of the following scores: 10, 6, 7, 2, 5?
6
10
7
5
18
In p<0.05 what does the p stand for?
Partiality
Probability
Primary data
Possibility
19
If you use a p<0.01 level of significance you are more likely to make a…
Type 2 error
Significant result
False positive
Type 1 error
20
Data collected from Government statistics and newspapers is called...
Primary data
Qualitative data
Quantitative data
Secondary data
21
What are the requirements of a parametric test?
Normal distribution of scores
Interval/ratio data
Nominal data
A big difference in standard deviation scores
22
A researcher collects scores out of 20 from participants on a memory test. This is....
Ordinal data
Ratio data
Nominal data
Interval data
23
What is standard deviation?
The range
How scores vary from the mean
The average
The square root of the variance
24
A researcher records how many participants have blue, green and brown eyes. This is..
Ordinal data
Ratio data
Interval data
Nominal data
25
0.05 is what as a percentage?
50%
5%
0.5%
25%
26
If your probability level is p<0.05 which hypothesis should you accept?
Alternate hypothesis
Dispositional hypothesis
Negative hypothesis
Null hypothesis
27
What type of graph is this?
Bar chart
Histogram
Scattergraph
Frequency polygon (line graph)
28
Data that involves participant's feelings and thoughts and is in written form is called...
Primary data
Secondary data
Quantitative data
Qualitative data
29
What type of correlation does this graph show?
Negative
A significant difference
Positive
No correlation
30
Which statistical tests use nominal data?
Mann-Whitney U test
Spearman's rho test
Chi-square test
Sign test (Binomial)
