Lesson 2.2.2
2.2.2 Variables, hypotheses and validity Quiz: Pearson Edexcel Psychology, Unit 2
20 questions
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Lesson 2.2.2, Variables, hypotheses and validity: 20 multiple choice questions for the Pearson Edexcel Psychology (9PS0), Unit 2: Cognitive psychology, written with Revision Ninja.
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The 20 questions
-
Which variable is directly manipulated or changed by the experimenter?
- Confounding variable
- Independent variable
- Dependent variable
- Extraneous variable
-
In a cognitive experiment measuring word recall, what represents the dependent variable?
- Words correctly recalled
- Participant age
- Revision time
- Word list difficulty
-
Defining a variable in clear, specific, and measurable terms is known as what?
- Categorisation
- Standardisation
- Randomisation
- Operationalisation
-
Which hypothesis predicts a difference between conditions without specifying the direction?
- Non-directional hypothesis
- Null hypothesis
- Alternative hypothesis
- Directional hypothesis
-
Which hypothesis is appropriate when prior research predicts the specific outcome direction?
- Non-directional hypothesis
- Directional hypothesis
- Null hypothesis
- Two-tailed hypothesis
-
Which hypothesis predicts no significant difference between experimental conditions?
- Alternative hypothesis
- Null hypothesis
- Non-directional hypothesis
- Directional hypothesis
-
What does an experimental hypothesis predict between conditions?
- Zero effect
- Perfect correlation
- No significant difference
- A significant difference
-
'Participants will recall significantly more words using semantic cues.' What type of hypothesis is this?
- Non-directional hypothesis
- Null hypothesis
- Directional hypothesis
- Two-tailed hypothesis
-
In a memory experiment comparing words and pictures, background noise level is what type of variable?
- Independent variable
- Extraneous variable
- Confounding variable
- Dependent variable
-
What term refers to the extent to which a study measures what it claims to measure?
- Validity
- Objectivity
- Reliability
- Standardisation
-
Which term refers to the consistency of a research measure when repeated?
- Objectivity
- Generalisability
- Reliability
- Validity
-
Which term describes whether changes in the dependent variable were directly caused by the independent variable?
- Internal validity
- External validity
- Ecological validity
- Predictive validity
-
Which term describes how well research findings generalise to everyday real-world settings?
- Population validity
- Ecological validity
- Predictive validity
- Internal validity
-
Which type of validity assesses how well a measure predicts future performance or behaviour?
- Concurrent validity
- Predictive validity
- Ecological validity
- Internal validity
-
Which term describes an experimenter unconsciously influencing participant responses through non-verbal cues?
- Social desirability
- Order effects
- Experimenter effects
- Demand characteristics
-
Which experimental design technique reduces demand characteristics by keeping participants unaware of the study aim?
- Single-blind design
- Double-blind design
- Random allocation
- Counterbalancing
-
Which type of validity is established when a measure accurately reflects the theoretical concept tested?
- Internal validity
- Temporal validity
- Ecological validity
- Construct validity
-
Which type of validity refers to generalising findings beyond the specific research setting or sample?
- Internal validity
- Concurrent validity
- External validity
- Construct validity
-
Which technique controls order effects in a repeated measures design by altering condition sequences?
- Operationalisation
- Randomisation
- Counterbalancing
- Standardisation
-
What does high internal validity combined with low ecological validity mean?
- Poor control, low generalisability
- Good control, low generalisability
- Good control, high generalisability
- Poor control, high generalisability
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