◈ Oracle PrepSign Up Free
A-LevelPsychologyResearch methods9990/23 · Oct/Nov 2021 · Q21 Mark

Explain why opportunity sampling may not produce a representative sample.

Mark scheme

Marking points from the official mark scheme (Oct/Nov 2021). The mark or mark type is shown in brackets.

  1. [1] People taken by availability are likely to be similar;
  2. [1] When the experimenter chooses participants they may be biased;

Write your answer and get it marked

On Oracle Prep you can write or photograph your own answer and have it marked by AI against this mark scheme, with feedback on what you missed.

Sign up free →

About this question

Topic
Research methods, A-Level Psychology (syllabus 9990). Structured question, 1 mark.
Source
A-Level Psychology, Oct/Nov 2021 Paper 2 Variant 3, question 2.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Related Psychology questions

Research methodsFeb/Mar 20183m

State the difference between a 'population' and a 'sample'.

Research methodsFeb/Mar 20183m

Name one sampling technique.

Research methodsFeb/Mar 20184m

Saavedra and Silverman studied a boy with a phobia of buttons and measured his distress using a 'feelings thermometer'.

Health psychologyFeb/Mar 201818m

Design a study using a questionnaire to investigate the reasons why men delay seeking medical help more than women.

Organisational psychologyFeb/Mar 201818m

Design a study using an interview to investigate levels of job satisfaction following a job rotation.

Clinical psychology (abnormality)Feb/Mar 201812m

'A token economy used for patients with schizophrenia in hospitals only makes them behave better for the staff.' To w…

← Browse all past-paper questions

© 2026 Oracle Prep