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Mazbahul Golam Ahamad
''Learning effect on survey data: high leverage and estimation bias''
( 2010, Vol. 30 No.1 )
Method of survey data collection, especially at household or personal interview, responders frequently answers extreme, because of their pre-assumption on questionnaire to get financial or food aid. This reduces data consistency and advances leverage that affects estimation procedure and estimated predictors. This study analysis the impact of learning effect on research hypothesis using mailed interview of different cluster of researcher such as expertise, mid-level research assistants and enumerators of primary (household or personal) data survey.
Keywords: Learning effect, Leverage, Estimation Bias.
Manuscript Received : Feb 16 2010 Manuscript Accepted : Feb 16 2010

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