found: WIkipedia, Sept. 9, 2021(Frank L. Schmidt (April 29, 1944-August 21, 2021) was an American psychology professor at the University of Iowa known for his work in personnel selection and employment testing. Selected bibliography: Schmidt, FL, & Hunter, JE. Development of a general solution to the problem of validity generalization. Journal of Applied Psychology, 1977 Hunter, John E; Schmidt, Frank L (1990), Methods of Meta-Analysis: Correcting Error and Bias in Research Findings, Newbury Park, California; London; New Delhi: SAGE Publications Schmidt, FL Statistical significance testing and cumulative knowledge in psychology: Implications for training. Psychological Methods, 1996. Schmidt, FL., Oh, I.-S., & Hayes, T. Fixed versus random effects models in meta-analysis: Model properties and an empirical comparison of differences in results. British Journal of Mathematical and Statistical Psychology, 2009.)
