Lesson 4.2.3.2.4
4.2.3.2.4 Correlation analysis, coefficients and levels of measurement Quiz: AQA Psychology, Unit 2
20 questions
In partnership with Revision Ninja
Lesson 4.2.3.2.4, Correlation analysis, coefficients and levels of measurement: 20 multiple choice questions for the AQA Psychology (7182), Unit 2: Psychology in context, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
What is the range of possible values for a correlation coefficient?
- 0 to +1 rise
- -1 to +1
- -10 to +10
- 1 to 100
-
What does a correlation coefficient of 0 indicate about two variables?
- Perfect positive correlation
- Perfect negative correlation
- Strong linear relationship
- No relationship
-
Which level of measurement classifies data into discrete named categories without order?
- Ratio
- Ordinal
- Nominal
- Interval
-
Which level of measurement places data in rank order without equal intervals?
- Interval
- Ordinal
- Nominal
- Ratio
-
Which level of measurement has numerical data with equal intervals but no true zero?
- Ordinal
- Interval
- Nominal
- Ratio
-
Which statistical test measures correlation for ordinal data?
- Mann-Whitney test
- Chi-squared test
- Pearson's r
- Spearman's rho
-
Which correlation test is most appropriate for interval data that are normally distributed?
- Chi-squared
- Pearson's r
- Sign test
- Spearman's rho
-
Points falling steadily from top left to bottom right on a scattergram show which correlation?
- Zero correlation
- Negative correlation
- Positive correlation
- Curvilinear correlation
-
How is a correlation coefficient of +0.12 best described?
- Strong negative
- Strong positive
- Weak negative
- Weak positive
-
Which level of measurement cannot be analysed using correlation?
- Ordinal
- Ratio
- Interval
- Nominal
-
How is a correlation coefficient of -0.45 best described?
- Moderate positive
- Strong negative
- Weak positive
- Moderate negative
-
A researcher reports r = 0.6 between two variables. What proportion of the variance do they share?
- 6%
- 36%
- 0.6%
- 60%
-
What percentage of variance is explained by a correlation coefficient of r = 0.20?
- 2%
- 40%
- 20%
- 4%
-
Pearson's r fails to detect which type of relationship between two variables?
- Direct
- Non-linear
- Inverse
- Linear
-
Which list correctly orders the coefficients r = -0.7, r = 0.3, r = -0.1 and r = 0.5 from weakest to strongest?
- -0.1, 0.3, 0.5, -0.7
- -0.7, 0.5, 0.3, -0.1
- 0.3, -0.1, 0.5, -0.7
- 0.5, -0.7, -0.1, 0.3
-
How can a single extreme outlier affect a correlation coefficient?
- Ensure statistical significance
- Distort its strength
- Make it zero
- Have no effect
-
Which level of measurement features fixed, equal intervals between units but no absolute zero?
- Ratio
- Ordinal
- Nominal
- Interval
-
A researcher has ranked data from two judges and wants to know how closely their rankings agree. Which test is most suitable?
- Spearman's rho
- Mann-Whitney U
- Pearson's r
- Related t-test
-
Which parametric correlation test requires interval data and normally distributed data?
- Pearson's r
- Spearman's rho
- Wilcoxon test
- Chi-squared test
-
How is a correlation coefficient of -0.85 best described?
- Strong positive
- Strong negative
- Weak negative
- Moderate negative
Related quizzes
- Learning approaches: behaviourism and classical conditioning Quiz · 4.2.1.1 · 20 questions
- Operant conditioning and social learning theory Quiz · 4.2.1.2 · 20 questions
- The cognitive approach Quiz · 4.2.1.3 · 20 questions
- The biological approach Quiz · 4.2.1.4 · 20 questions
- The psychodynamic approach Quiz · 4.2.1.5 · 20 questions
- Humanistic psychology Quiz · 4.2.1.6 · 20 questions
- Comparison of approaches Quiz · 4.2.1.7 · 20 questions
- Divisions of the nervous system and neurons Quiz · 4.2.2.1 · 20 questions
- Synaptic transmission Quiz · 4.2.2.2 · 20 questions
- Endocrine system and fight or flight Quiz · 4.2.2.3 · 20 questions