opeg fall 13 presentation

Data Collection & Data ConsistencyMichael A. Levin, PhDOtterbein University@[email protected]

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

Human Observation

Michael A. Levin|Otterbein University|OPEG Fall 2013

Select


Train


Initial Contact

• Foot-in-door• Door-in-face


Validate


Terminate


Machine Observation


Data Consistency


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@[email protected]

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