Presentation Title

Garbage In, Garbage Out: Implications of Data Quality for Valuation Models

Brief Session Description

Using before and after property data from the Maricopa County Assessor’s Office Desktop Review program, this session will explore how data quality affects valuation models. In addition to exploring impacts on measures of goodness of fit and measures of variable importance and reliability, analysis on predicted values will also be shared to further discuss how data quality impacts an assessor’s goal of producing fair and equitable valuations.

Presentation Category

Assessment Technology

Audience Expertise

Intermediate (Ideal for the participant with a general knowledge within the areas covered.)

Location

223-224

Start Date

9-9-2019 2:45 PM

End Date

9-9-2019 3:45 PM

Moderator Name

Eric Bails

Appendium Knowledge Area

Collecting and Maintaining Property Data

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Sep 9th, 2:45 PM Sep 9th, 3:45 PM

Garbage In, Garbage Out: Implications of Data Quality for Valuation Models

223-224

Using before and after property data from the Maricopa County Assessor’s Office Desktop Review program, this session will explore how data quality affects valuation models. In addition to exploring impacts on measures of goodness of fit and measures of variable importance and reliability, analysis on predicted values will also be shared to further discuss how data quality impacts an assessor’s goal of producing fair and equitable valuations.