Piagetian tasks measure intelligence and intelligence tests assess cognitive development: A reanalysis

Multiple factor analysis.

Paul Horst · Psychological Bulletin · 1948 · 1.6K citations

The Development of Hierarchical Factor Solutions

John Schmid, John M. Leiman · Psychometrika · 1957 · 1.1K citations

Social Sciences, Psychology, Item Response Theory +9

An Investigation of the Parallel Analysis Criterion for Determining the Number of Common Factors

Lloyd G. Humphreys, Richard G. Montanelli · Multivariate Behavioral Research · 1975 · 395 citations

Social Sciences, Educational Measurement, Psychology +16

Latent Roots of Random Data Correlation Matrices with Squared Multiple Correlations on the Diagonal: A Monte Carlo Study

Richard G. Montanelli, Lloyd G. Humphreys · Psychometrika · 1976 · 271 citations

Natural Sciences, Biostatistics, Mathematics +15

The organization of human abilities.

Lloyd G. Humphreys · American Psychologist · 1962 · 217 citations

Education, Psychology, Cognitive Psychology +8