Introduction and Definition of the Flynn Effect The Flynn Effect stands as one of the most significant and curious findings in the history of psychometrics and intelligence research. Defined as the substantial and sustained increase in both fluid and crystallized intelligence test scores measured across the globe from approximately the 1930s to the late 20th […]
Dysgenic Pressure The Core Definition of Dysgenic Pressure Dysgenic pressure is a theoretical concept originating in demographic studies and behavioral genetics that posits a gradual, generational decline in the average genetic quality of a population for specific traits, most commonly focusing on cognitive ability or intelligence. This pressure is hypothesized to occur when subgroups possessing […]