Paper 3 · June 2023 · Statistics: measurement scales, Poisson, chi-square, spatial autocorrelation

Give one recognised index of spatial autocorrelation used in geographical analysis.

Model answer

Moran's I

Also accepted: Morans I, Geary's C, Gearys C, Getis-Ord G, join count statistic

Explanation

Moran's I and Geary's C are the two standard global measures, with the Getis-Ord G statistic and the join count statistic as further options; the local versions are LISA and Getis-Ord Gi*. Each tests whether nearby places hold more similar values than distant ones.

Derived from ZIMSEC Advanced Level Geography 6037/3 Paper 3 Practical Test, June 2023 session, Q1

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More questions from this paper

Why does spatial autocorrelation matter when a geographer applies classical statistical tests to spatial data?
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