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Table 6 Results of multiple regression analysis for HP samples: multiple regression coefficient (R), coefficient of determination (R2), adjusted R2, p-values

From: Characterization of seventeenth century papers from Valvasor's collection of the Zagreb Archdiocese

  Brightness Yellowness Opacity Gloss
Multiple R 0.78 0.74 0.89 0.63
R2 0.61 0.55 0.80 0.40
Adjusted R2 0.50 0.41 0.74 0.23
p-value 0.037 0.063 0.004 0.169
p-value—thickness 0.299 0.323 0.009 0.582
p-value—pH 0.015 0.025 0.256 0.08