Geographic Threats to Validity

Nov-07 : In this lesson, we will disentangle geographic threats to validity.

Discussion

In a discussion we will reflect on the implications of geographic threats to validity for the studies we have examined or for other geographic research projects you have been working on. Which threats to validity matter in your selected case(s), and do you have any suggestions about how to deal with them?

It is not necessary to write a blog post this week, but you should integrate discussion of geographic threats to validity in your report on the Kang et al 2020 reproduction study.

A typology of geographic threats to validity

• Boundary/Edge Effects
• Modifiable Aerial Unit Problem
• Scale Dependency
• Spatial Dependency/Autocorrelation
• Spatial Nonstationarity
• Spatial Heteogeneity

Reading

Schmitt, R. R. (1978). Threats to validity involving geographic space. Socio-Economic Planning Sciences, 12(4), 191–195. https://doi.org/10.1016/0038-0121(78)90044-7

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