OCR A-Level Psychology H567
Research Methods and Techniques
Planning and Conducting Research
Data Recording, Analysis and Presentation
Report Writing and Scientific Communication
Practical Activities and the Nature of Science
Mathematical Requirements for Research Methods
Studying and Evaluating the Core Studies: The Common Framework
Core Studies: Social Area
Core Studies: Cognitive Area
Core Studies: Developmental Area
Core Studies: Biological Area
Core Studies: Individual Differences Area
Areas and Perspectives in Psychology
Debates in Psychology
Practical Applications of Psychology
Issues in Mental Health
Child PsychologyApplied option
Criminal PsychologyApplied option
Environmental PsychologyApplied option
Sport and Exercise PsychologyApplied option
Methodological Issues and Debates Running Through Applied Psychology
Planning and Conducting Research
Target populations, random and opportunity sampling
- 3 things to know
- Component 01
Overview
Recall questions on target populations, samples, representativeness and sampling bias, and how random and opportunity samples are drawn, with the strengths and weaknesses of each technique.
What you need to know
Answer each one before you reveal it.
Give two weaknesses of random sampling.
What is a target population?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is a target population?
Model answer
The entire group sharing a defined characteristic about which the researcher wishes to draw conclusions.
- 2
What is a sample?
Model answer
The smaller group drawn from the target population who actually take part in the study.
- 3
Why does research use samples rather than whole populations?
Model answer
Testing an entire population is almost always far too costly and time-consuming to be practical.
- 4
What is meant by a representative sample?
Model answer
One whose characteristics closely mirror those of the target population, so that findings can be generalised back to it.
- 5
What is sampling bias?
Model answer
Where the method of selection means certain groups are over-represented or under-represented, so the sample does not reflect the population.
- 6
Describe random sampling.
Model answer
Every member of the target population has an equal chance of selection, for example by drawing names from a complete list using a random number generator.
Other ways to work this
The same content, four other ways.
What is inside Levo
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Every question in Planning and Conducting Research, on a schedule.
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