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Research - Coggle Diagram

- - - - Qualitative research
      - Quantitative research
    - - Descriptive research
      - Analytical research
    - - Fundamental or Basic research
      - Applied research
- - - - ii. Purposive or judgemental (sample)
      - iii. Snowball (sample)
      - i. Reliance on available subjects/Convenience (sample)
        
        where researchers select participants who are readily available and accessible to them, rather than using a random sampling technique to select a representative sample from the larger population
        
        This method is often used in studies that have limited time, resources, or access to the population of interest. For example, a researcher might choose to recruit participants from a university campus, a community organization, or through social media, because these participants are easily accessible to them
      - iv. Quota (sample)
    - - Systematic (sample)
        
        For example, if the population of study contained 2,000 students at a high school and the researcher wanted a sample of 100 students, the students would be put into list form and then every 20th student would be selected for inclusion in the sample.
        
        To ensure against any possible human bias in this method, the researcher should select the first individual at random.
        
        In a systematic sample, the elements of the population are put into a list and then every ith element in the list is chosen (systematically) for inclusion in the sample.
        
        Calculate the sampling interval as the ratio between population size and sample size,
        I = N/n.
        
        Arrange all elements in the population in an order.
        
        Select a case in the first interval randomly.
        
        Select every ith case from this point.
      - Stratified (sample)
      - Simple random (sample)
      - Cluster (sample)