Random sampling

Cards (4)

  • Briefly explain how a psychologist would select a random sample for research
    A psychologist would select a random sample by ensuring every member of the target population has an equal chance of being chosen. For example, they could use the lottery method by writing all names on slips of paper, placing them in a hat, and drawing out the number needed for the sample
  • Evaluate the use of random sampling in psychological research (advantage)
    Random sampling is useful in psychological research because it is unbiased. Every member of the target population has an equal chance of being selected, which increases the likelihood of obtaining a representative sample. This makes the findings more generalisable to the wider population
  • Evaluate the use of random sampling in psychological research (disadvantage)
    However, a disadvantage is that it can be time-consuming and impractical. A researcher needs a complete list of the target population and must contact all selected individuals, which may not always be possible
  • Evaluate the use of random sampling in psychological research (conclusion)
    Overall, while random sampling increases objectivity and reduces researcher bias, it’s practical limitations can make it difficult to use in real-world settings