Приведу несколько нужных по теме ссылок: Alan Gerber, Neil Malhotra. Do Statistical Reporting Standards Affect What Is Published? Publication Bias in Two Leading Political Science Journals // Quarterly Journal of Political Science, 2008, 3, no. 3, p. 313–326; Alan S. Gerber, Neil Malhotra. Publication Bias in Empirical Sociological Research: Do Arbitrary Significance Levels Distort Published Results? // Sociological Methods & Research, 2008, 37, no. 1, p. 3–30; E. J. Masicampo, Daniel R. Lalande. A Peculiar Prevalence of P Values Just Below.05 // Quarterly Journal of Experimental Psychology, 2012, 65, no. 11, p. 2271–2279.