Children skilled in mental abacus show enhanced non-symbolic number sense

Asymptotic Confidence Intervals for Indirect Effects in Structural Equation Models

Michael E. Sobel · Sociological Methodology · 1982 · 12.7K citations

Public Health, Biostatistics, Behavioral Economics +10

Mental Rotation of Three-Dimensional Objects

Roger N. Shepard, Jacqueline Metzler · Science · 1971 · 6.2K citations

Medicine, Psychology, Perspective Drawing +16

Mental Rotations, a Group Test of Three-Dimensional Spatial Visualization

Steven G. Vandenberg, A. R. Kuse · Perceptual and Motor Skills · 1978 · 2.6K citations

Social Sciences, Behavioral Sciences, Psychology +17

Individual differences in non-verbal number acuity correlate with maths achievement

Justin Halberda, Michèle M. M. Mazzocco, Lisa Feigenson · Nature · 2008 · 1.5K citations

Education, Educational Psychology, Psychology +16

Exact and Approximate Arithmetic in an Amazonian Indigene Group

Pierre Pica, Cathy Lemer, Véronique Izard et al. · Science · 2004 · 1.3K citations · Full text

Language Studies, Linguistics, Mathematics +15