Who collected the data?
Who collected the data?

Primary data is collected first-hand by a researcher for their own study. Examples include running an experiment, distributing a questionnaire, or observing and recording behaviour.
Step-by-step lessons on Edexcel GCSE Psychology 11.2.4 Primary and secondary data. Each one builds up to exam-style questions. Start with the more concrete compulsory topics like memory and development before tackling evaluation-heavy optional topics and research methods.