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Table 5 Correlation coefficients among the factors of AHRKAAS and between the factors and the total scale of AHRKAAS

From: Development and testing of the reliability and validity of the adolescent haze related knowledge awareness assessment scale (AHRKAAS)

Factor Factor 2 Factor 3 Factor 4 AHRKAAS
Factor 1 0.353** 0.253** 0.557** 0.685**
Factor 2 _ 0.543** 0.347** 0.722**
Factor 3 _ _ 0.350** 0.819**
Factor 4 _ _ _ 0.703**
  1. Factor 1, the cognition of factitious factors of haze formation; Factor 2, the cognition of natural factors of haze formation; Factor 3, the cognition of haze harms on human body; Factor 4, the cognition of haze health protection measures. This symbol ‘_‘indicates no such correlation coefficient. **P < 0.01