OPEG Fall 13 Presentation
description
Transcript of 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
Michael A. Levin|Otterbein University|OPEG Fall 2013
Train
Michael A. Levin|Otterbein University|OPEG Fall 2013
Initial Contact
• Foot-in-door• Door-in-face
Michael A. Levin|Otterbein University|OPEG Fall 2013
Validate
Michael A. Levin|Otterbein University|OPEG Fall 2013
Terminate
Michael A. Levin|Otterbein University|OPEG Fall 2013
Machine Observation
Michael A. Levin|Otterbein University|OPEG Fall 2013
Data Consistency
Michael A. Levin|Otterbein University|OPEG Fall 2013
Data Consistency
• Problems with Responses– Return to field– Assign missing values– Discard values
• Data Cleaning– Checks–Weights
Michael A. Levin|Otterbein University|OPEG Fall 2013
Return to Field
• Contact respondent• Additional collection
Michael A. Levin|Otterbein University|OPEG Fall 2013
Assign Missing Values
• Substitute neutral value• Imputation
Michael A. Levin|Otterbein University|OPEG Fall 2013
Discard Values
• Casewise• Pairwise
Michael A. Levin|Otterbein University|OPEG Fall 2013
Data Cleaning
• Checks• Weights
Michael A. Levin|Otterbein University|OPEG Fall 2013
Comments & QuestionsMichael A. Levin, PhDOtterbein University@[email protected]