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12 Psychology Data Test Revision
12 Psychology Data Test Revision
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A level linear Psychology data analysis test
Flashcards
46 cards
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Questions
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Answers
1
What is the median of the following scores: 10, 6, 7, 2, 5?
10
7
5
6
2
Descriptive statistics do what?
Infer probable conclusions
Describe and summarise the results
3
The greater the control you have means the experiment has MORE
Validity
Reliability
4
IQR and standard deviation are both measures of:
correlation
variability
central tendency
statistical significance
5
Based on the 95% confidence intervals...
Red is greater than blue
The true means of red and blue in the population are different
There's probably no significant difference between red and blue
Red has lower variability than blue
6
Which is NOT true of the IQR?
measure of statistical dispersion
IQR = Q1 - Q3
represents the middle 50% of the data
shows how spread out the data is
7
What does p value tell us?
If compared data has high variability
If there is a significant difference in the compared data
The strength of a correlation
The central tendency of the data
8
What is the mean of the following scores: 5, 10, 5, 8, 2?
3
5
10
6
9
12 Psychology test results were strange - students either did really well or they failed. It's safe to assume that...
the median would be low
the mean would be high
the SD would be high
the range would be low
10
The variables we try to MINIMISE in research
CV
EV
DV
IV
11
The variable we MEASURE in research
IV
CV
DV
EV
12
What are the requirements of a parametric test?
Interval/ratio data
Nominal data
A big difference in standard deviation scores
Normal distribution of scores
13
Identify two trends in the data
From 1980, both genders show a steady decline
Men show a steady incline from 1960
Women show a steady decline from 1960
Women have the same smoking rates for 1965 and 1970
14
A researcher collects scores out of 20 from participants on a memory test. This is....
Ratio data
Ordinal data
Nominal data
Interval data
15
What type of correlation does this graph show?
Positive
A significant difference
Negative
No correlation
16
rₛ = 0 What type of correlation is this?
Strong positive
Weak positive
No correlation
Weak negative
17
rₛ = -0.2 What type of correlation is this?
Weak positive
Strong negative
Weak negative
Strong positive
18
Which of the following is NOT a requirement of a parametric test?
Nominal data
Interval/ ratio data
Similar variances
Normal distribution of scores
19
What is the range of the following scores: 2, 4, 5, 8, 10, 15, 25, 29?
27
29
4
25
20
Would a probability level of p<0.05 be significant?
No
Yes
Possibly maybe
Probably not
21
Inferential statistics do what?
Infer probable conclusions
Describe and summarise the results
22
What is standard deviation?
The range
How scores vary from the mean
The square root of the variance
The average
23
True or false?
True
False
24
The greater the control you have means the experiment has LESS
Validity
Reliability
25
What do the results of the statistical test demonstrate?
there is a statistical difference
There is a difference of 1.054
that there is no statistical difference as the result is >0.07
There is a difference of 1.054
26
In p<0.05 what does the p stand for?
Partiality
Possibility
Probability
Primary data
27
What type of graph is most appropriate for displaying correlational data?
Scatter graph
Histogram
Bar chart
Line graph
28
If your probability level is p<0.05 which hypothesis should you accept?
Null hypothesis
Negative hypothesis
Dispositional hypothesis
Alternate hypothesis
29
A researcher records the reaction time of participant's. This is.....
Nominal data
Interval data
Ordinal data
Ratio data
30
Would a probability level of p>0.05 be significant?
No
Probably
Yes
Possibly
31
If you were conducting a correlational study, which statistical test would you use?
Wilcoxon
Spearman's Rho
Chi-squared
Mann-Whitney U
32
The variable we MANIPULATE in research
DV
CV
IV
EV
33
A researcher records how many participants have blue, green and brown eyes. This is..
Ratio data
Interval data
Ordinal data
Nominal data
34
rₛ = 0.8 What type of correlation is this?
No correlation
Strong positive
Strong negative
Weak positive
35
Data collected from Government statistics and newspapers is called...
Quantitative data
Qualitative data
Primary data
Secondary data
36
p<0.05 means that there is a 95% probability that the results are due to the experiment
True
False
37
Identify the response with the lowest mean value.
C
A
None
B
38
0.05 is what as a percentage?
0.5%
5%
50%
25%
39
What type of distribution is this?
A positively skewed distribution
A negatively skewed distribution
A positive correlation
A normal distribution
40
Calculate the IQR of this data set: 18, 20, 25, 30, 35.
32.5
25
13.5
19
41
Data that involves participant's feelings and thoughts and is in written form is called...
Secondary data
Qualitative data
Primary data
Quantitative data
42
Which test would you use for nominal data and independent measures
Wilcoxon
Chi-squared
Binomial Sign Test
Mann-Whitney U
43
What type of graph is this?
Frequency polygon
Scatergraph
Pie chart
Bar chart
44
If you use a p<0.01 level of significance you are more likely to make a…
Significant result
Type 2 error
Type 1 error
False positive
45
Which test would you use for repeated measures and ordinal/interval data
Wilcoxon
Mann-Whitney U
Spearman's Rho
Chi-squared
46
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 a normal distribution
When you had extreme scores
