Barely Significant

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SPAD readings and leaves chlorophyll concentration We found a positive and significant exponential relationship between SPAD readings and leaves chlorophyll concentration for the factorial combinations NTxN0 (R 2 = 0.74); no significant relationship where found for both factorial combination RTxN0 (R 2 = 0.08) and CTxN0 (R 2 = 0.05) with, in the latter case, a negative trend (CTxN0: y = 1.6783e -0.007x ) ( Fig 2 ).
The 3D-EPI showed a trend of lower sensitivity and higher specificity compared to the SMS-EPI sequence, these differences were however not statistically significant neither for AR(1) (paired t-test with 9 degrees of freedom, p = 0.58 and t = 0.57 for the sensitivity; p = 0.44 and t = 0.81 for the specificity) nor for FAST (p = 0.91 and t = 0.12 for the sensitivity; p = 0.68 and t = 0.43 for the specificity).
highly significantqualifiedgold
Although these estimates are material in size and highly significant in statistical terms, aided by the very large samples, the overall probit regression only explains about 5% of the range of answers across individuals, and most of this is provided by the country fixed effects.