Psychology A-Level
random sampling
What random sampling means in Psychology A-Level, as defined for OCR.
Definition of random sampling
Check what you remember
Read the wording for your board, then hide it and explain random sampling in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Every member has an equal chance of selection, which in practice means a complete list of the population and then a lottery or a random number generator.
Topics that use random sampling
- D.1 – handling data (OCR A-Level)
Related terms
- bar charts and histograms
- calculating tests of difference
- central tendency on a curve
- checking data quality
- co-variables
- comparing two conditions
- content analysis
- correlation coefficients
Using random sampling in the exam
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