Detalle de Cambio

Cambio #3 Naturally contaminated soils (Soil-2019)
Descripción Originalmente, two soil types were sampled: Coria (pH=7.8) and Constantina (pH=5.5)..
En esta replicación, three soil types were sampled: Miraflores-1 and Miraflores-2 (with Pb, Zn and Cu) and Lebrija (not contaminated by metals).
Con el propósito de use naturally contaminated soils. The Miraflores soils are urban gardens with natural contamination and the Lebrija soil is used as a control..
Dimensión Operacionalización, específicamente, tratamiento.
Efectos sobre la validez
  • Este cambio incrementa sustancialmente (+3) la validez de conclusión porque the construct is better reflected
  • Este cambio incrementa sustancialmente (+3) la validez interna porque soils of different characteristics are compared.
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