Published on
June 9, 2024
by
Julia Merkus, MA.
Revised on
November 26, 2025
In simple random sampling, every member of the population has an equal probability of being chosen for the sample.
This probability sampling method is the easiest to execute because it requires minimal prior knowledge about the population and it involves only one random selection.
The use of randomization ensures that the sample is representative of the population, with a reduced risk of biases such as sampling bias and selection bias. Additionally, the sample’s internal and external validity are likely to be high.
Simple random sampling exampleA university wants to conduct a survey to understand the opinions of its students about a new campus recreation center. The university has a population of 10,000 students. To conduct the survey, the researcher decides to use simple random sampling.
The researcher obtains a list of all 10,000 students. They use a random number generator to select a random sample of 500 students from the list. The random number generator assigns a unique number to each student in the list and then selects 500 numbers at random.
Every student has an equal chance of ending up in the sample.
Published on
June 9, 2024
by
Julia Merkus, MA.
Revised on
November 26, 2025
Action research is a research method that combines investigation and intervention to solve a problem. Because of its interactive nature, action research is commonly used in the social sciences, particularly in educational contexts.
Educators frequently use this method as a means of structured inquiry, emphasizing reflective practice and combining theoretical knowledge and practical application.
The term “action research” was first introduced in 1944 by Kurt Lewin, a renowned MIT professor. Due to its cyclical nature, action research is also referred to as the action cycle, action model, or cycle of inquiry.
TipA generative AI tool, like AI Chat, can be helpful for brainstorming action research ideas and planning your research process.
