Changes in Intelligence Over a Quarter of a Century

Massive IQ gains in 14 nations: What IQ tests really measure.

1987 • 1,756 citations

The secular trend in physical growth in Sweden

1974 • 107 citations

RELATIVE CHANGES IN INTELLIGENCE FROM 13 TO 18: I. Background and methodology

1968 • 97 citations

Relative Achievement: School Performance in Relation to Intelligence, Sex and Home Environment.

1972 • 61 citations

The adolescent spurt in mental growth

1965 • 60 citations

A Comparison between Thirteen‐Year‐Olds Tested in 1961, 1966 and 1980

1986 • 37 citations

AN ECOLOGICAL ANALYSIS OF TEST SCORE CHANGES OVER TIME

1977 • 15 citations