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