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Research, Policy and Practice

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Table 7 Mixed OLS-random effects test

From: The effects of adaptation to climate change on income of households in rural Ethiopia

Mixed effects REML regression Number of obs = 1559
Group variable: household type Number of groups = 4
  Obs per group: min = 200
  Avg = 389.8
  Max = 521
  Wald chi2(26) = 112.90
  Prob > chi2 = 0.0000
Log restricted-likelihood = −13,654.499
Random effects parameter Estimate Standard error [95% confidence interval]
Household type: (Sigma_u) 1213.958 503.6702 538.3207 2737.578
Individual: (Sigma_e) 1663.82 30.08656 1605.884 1723.846
LR test vs. linear regression: chibar2(01) = 171.84 Prob = chibar2 = 0.0000