Lesson 3.1.4.5.1
3.1.4.5.1 Correlational relationships and scatter diagrams Quiz: AQA Psychology, Unit 4
20 questions
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Lesson 3.1.4.5.1, Correlational relationships and scatter diagrams: 20 multiple choice questions for the AQA GCSE Psychology (8182), Unit 4: Research methods, written with Revision Ninja.
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The 20 questions
-
In a positive correlation, what happens to one co-variable as the other increases?
- It increases
- It becomes zero
- It stays constant
- It decreases
-
How do data points slope on a scatter diagram showing a negative correlation?
- Horizontally
- Upwards
- Downwards
- Vertically
-
What relationship between co-variables is indicated by a correlation coefficient close to zero?
- Strong positive relationship
- No relationship
- Direct causal relationship
- Strong negative relationship
-
What is the main limitation of using correlational research in psychology?
- Cannot show causation
- Lacks quantitative data
- Requires strict control
- Always unethical
-
Which graph type is used to display the relationship between two co-variables?
- Bar chart
- Histogram
- Scatter diagram
- Pie chart
-
What type of correlation is shown by points tightly clustered along an upward slope?
- Zero correlation
- Strong positive
- Strong negative
- Weak positive
-
Why might a psychologist choose a correlational study over an experiment?
- Demonstrates direct causation
- Eliminates observer bias
- Provides qualitative depth
- Investigates unmaniputable variables
-
What are the two variables in a correlation called?
- Dependent groups
- Control conditions
- Experimental manipulations
- Co-variables
-
A researcher finds a positive correlation between revision hours and exam scores. What is concluded?
- Scores cause revision
- Revision causes scores
- No relationship exists
- Variables are associated
-
What does each plotted dot represent on a psychological scatter diagram?
- One participant's scores
- One variable total
- An anomalous score
- The group mean
-
If screen time and sleep duration show a negative correlation, what happens as screen time increases?
- Sleep duration decreases
- Sleep remains unchanged
- Sleep duration increases
- Screen time drops
-
What correlation is indicated by a loose, widely spaced pattern of dots sloping upwards?
- Weak negative
- Strong positive
- Weak positive
- Zero correlation
-
Why is a correlation used instead of an experiment to study smoking and lung health?
- Proves cause
- Greater reliability
- Better control
- Ethical issues
-
What correlation exists when dots on a scatter diagram are spread randomly with no trend?
- Strong positive
- Weak negative
- Perfect correlation
- Zero correlation
-
Which pair of co-variables is most likely to display a positive correlation?
- Temperature and coats
- Price and demand
- Absences and grades
- Revision and grades
-
What type of link is demonstrated by a correlation between two variables?
- An association
- A causal link
- A direct manipulation
- Cause and effect
-
A third variable that affects both measured variables is called what?
- A dependent variable
- A demand characteristic
- A confounding variable
- An independent variable
-
In a correlation between ice cream sales and drowning rates, what is hot weather?
- A controlled variable
- The independent variable
- A third variable
- The dependent variable
-
What visual pattern on a scatter diagram suggests a non-linear relationship?
- Randomly scattered points
- A diagonal band
- A straight line
- A curved line
-
How can a single outlier affect a scatter diagram?
- It removes noise
- It proves causation
- It distorts patterns
- It increases validity
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