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