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Relationship between full text Flesch Reading Ease score and the independent variables in the final ANCOVA model.
| Independent variables | Estimates | SE | p-value | Multiple |
|---|---|---|---|---|
| comparison | ||||
| Publication year | 0.212 | 0.319 | 0.508 | |
| Impact factor | -0.438 | 0.229 | 0.061 | |
| Article type | <0.001 | (1) = (2) > (3) | ||
| Experimental articles (1) | 9.240 | 2.672 | ||
| Methodology papers (2) | 10.325 | 2.434 | ||
| Reviews/meta-analyses (3) | 0 | |||
| Intercept | -399.926 | 639.094 | 0.534 | |
