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Mind map

Data Collection

d t English

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Data Collection

Sampling strategy
- Randomized
  - SRS
    - every individual and group has equal chance of representation
  - Randomized
    - Stratified
      - some of every group
    - Systematic
      - Start x and then every n
    - Multi-staged
      - SRS of SRS
    - Cluster
      - randomly choose all of one group
- Non-Randomized
  - Conveniance
  - voluntary response
    - Sample survey
Study design
- Observational
  - Sample Survey
    - Cross-sectional study, response bias, undercoverage
    - Voluntary
    - randomly selected
  - Cohort
    - Prospective, longitudinal study
  - Case-Control
    - Retrospective, comparison of two samples
- Experimental
  - Completely Randomized
    - Matched pairs/Repeated measures
      - if you CAN you pair the data
  - Blocked
    - Grouped before assigning treatments

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Description: Mind Map on Data Collection, created by d t on 16/04/2018.
Created by: d t
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