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Primary Data (Quantitative) - Coggle Diagram
Primary Data (Quantitative)
Measurement
Nominal
Ordinal / Rank
Interval
Ratio
Scaling Techniques
Single Item Scale
Itemised Category Scales
Comparative Scales
Rank Order Scales
Constant Sum Scale
Paired Comparison Scales
Continuous Scale
Multi Item Scale
Likert Scale
Questionnaire Design
Do you need the question?
Can your respondent understand the question?
Respondents willing to answer the question?
Respondents able to answer the question?
Other Common Mistakes
Leading Questions
Vague Questions
Double-Barrelled Questions
Incomplete Response Options
Overlapping response options
Sampling
Population
Census (Parameter)
Sampling Frame
Sample
Sampling Process
1: Define target population (Who?)
Identify the Sampling Frame (How to find?)
Sampling Procedures (How to select?)
Probability
Simple Random Sampling
Stratified Sampling
Non probability
Convenience
Judgemental
Quota
Snowball
Determine Sample Size