opeg fall 13 presentation

Data Collection & Data ConsistencyMichael A. Levin, PhDOtterbein University@michaelalevinmlevin@otterbein.edu

Data CollectionMichael A. Levin|Otterbein University|OPEG Fall 2013

Human Observation

Michael A. Levin|Otterbein University|OPEG Fall 2013

Select

Initial Contact

• Foot-in-door• Door-in-face

Validate

Terminate

Machine Observation

Data Consistency

• Problems with Responses– Return to field– Assign missing values– Discard values

• Data Cleaning– Checks–Weights

Return to Field

• Contact respondent• Additional collection

Assign Missing Values

• Substitute neutral value• Imputation

Discard Values

• Casewise• Pairwise

Data Cleaning

• Checks• Weights

Comments & QuestionsMichael A. Levin, PhDOtterbein University@michaelalevinmlevin@otterbein.edu

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