Sampling Method

Sampling Method

1. 1.Research Objectives

   • Exploratory research >Aims to clarify ambiguous situations/discover new ideas
   • Descriptive Research  > aims to be able to illustrate the characteristics of the target of study.
   • Causal Research  > To help identify causes/relationship
   • 2. Plan Research Design
     • 3. Prepare Sampling Plan
       • 4. Data Collection
         • Data Editing  > Check collection for omissions, legibility, consistency 
         • Data Coding > key in data into software
         • 5. Data Analysis
           • 6. Conclusion and Reporting
     • Survey
       • Research technique in which a sample is interviewed in some form of behavior of respondents is observed & described
       • Survey Errors
         • Leading Question >Influence respondent's choice to get the choice the survey wants
         • Ambiguous Choice/Question > Too General  E.g. Often, Frequent, news(didn't tell you what news or what category)
         • Double-Barralled Question > One sentence ask two question
         • Making Assumptions E.g Should continue their excellent service?
         • Non-mutually exclusive choices E,g 1. 100-200 2. 200-300 3. 300-400

2. Population

   • All items of interest that we are trying to draw conclusion
   • Sample
     • subset of population

3. Random Sampling Errors

   • the difference between the sample result and the true value of population.
   • Non-Systematic Error Cannot be Avoided
   • Non-Sampling Error
     • Results from non-sampling factors, primarily the nature of the study's design & the correctness of execution 
     • Systematic Error Avoidable

4. Probability Sampling