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Table 2 Rotated component matrix, eigenvalue and cumulative variance contribution rate

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

  Items Factor 3 Factor 1 Factor 4 Factor 2
  Q1 _ 0.812 _ _
  Q2 _ 0.837 _ _
  Q3 _ 0.831 _ _
  Q4 _ 0.848 _ _
  Q5 _ 0.746 _ _
  Q6 _ 0.769 _ _
  Q7 _ 0.757 _ _
  Q8 _ _ _ 0.674
  Q9 _ _ _ 0.714
  Q10 _ _ _ 0.778
  Q11 _ _ _ 0.732
  Q12 0.590 _ _ _
  Q13 0.730 _ _ _
  Q14 0.815 _ _ _
  Q15 0.819 _ _ _
  Q16 0.832 _ _ _
  Q17 0.837 _ _ _
  Q18 0.775 _ _ _
  Q19 0.732 _ _ _
  Q20 0.660 _ _ _
  Q21 _ _ 0.685 _
  Q22 _ _ 0.760 _
  Q23 _ _ 0.785 _
  Q24 _ _ 0.735 _
  Q25 _ _ 0.628 _
Eigenvalue   5.634 5.263 3.034 2.614
Variance contribution rate (%)   22.535 21.053 12.134 10.456
Cumulative variance contribution rate (%)   22.535 43.588 55.722 66.178
Factor naming   The cognition of haze harmful effects on the human body The cognition of factitious factors of haze formation The cognition of haze health protection measures The cognition of natural factors of haze formation
  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 harmful effects on the human body; Factor 4, the cognition of haze health protection measures
  2. This symbol ‘_’ indicates that values were less than 0.400. Suppress absolute values less than 0.400