Intelligence and the brain: A model-based approach Rogier A. Kievit, Hilko van Rooijen, Jelte M. Wicherts, Lourens J. Waldorp, Kees-Jan Kan, H. Steven Scholte, and Denny Borsboom Various biological correlates of general intelligence (g) have been reported. Despite this, however, the relationship between neurological measurements and g is not fully clear. We use structural equation […]

Sex Differences in the Brain: The Not So Inconvenient Truth Margaret M. McCarthy, Arthur P. Arnold, Gregory F. Ball, Jeffrey D. Blaustein, and Geert. J. De Vries The arguments for studying sex differences in the brain are as follows. (1) There is compelling evidence of pervasive and robust differences between males and females in both […]

Predicting Preferences for Sex Acts: Which Traits Matter Most, and Why? Ashley Peterson, Glenn Geher, and Scott Barry Kaufman Several dispositional traits have been examined in mating contexts by evolutionary psychologists. Such traits include life history strategy, sociosexuality, and the Big Five. Recently, scholars have examined the validity and predictive utility of mating intelligence, a […]

Openness, Fluid Intelligence, and Crystallized Intelligence: Toward an Integrative Model Matthias Ziegler, Erik Danay, Moritz Heene, Jens Asendorpf, Markus Bühner Many studies are concerned with the bivariate relationships between Openness, fluid intelligence (Gf), and crystallized intelligence (Gc). Results suggest an influence of Gf and Openness on Gc. However, the overlap between Gf and Openness is […]

Assessing Individual Differences in the Degree to Which People are Committed to Following Their Beliefs Matthew A. Maxwell-Smith, Victoria M. Esses The authors developed a new dispositional measure of Commitment to Beliefs (CTB)— the degree to which people feel it is important to follow their value-expressive beliefs— across three phases of research. In Phases 1 […]

Publish (your data) or (let the data) perish! Why not publish your data too? Jelte M. Wicherts, Marjan Bakker The authors argue that upon publication of a paper, the data should be made available through online archives or repositories. Reasons for not sharing data are discussed and contrasted with advantages of sharing, which include abiding […]

Are cognitive g and academic achievement g one and the same g? An exploration on the Woodcock–Johnson and Kaufman tests Scott Barry Kaufman, Matthew R. Reynolds, Xin Liu, Alan S. Kaufman, Kevin S. McGrew We examined the degree to which the conventional notion of g associated with IQ tests and general cognitive ability tests (COG-g) […]