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