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