A simple syllogism-solving test: Empirical findings and implications for g research.

Shikishima, C., Yamagata, S., Hiraishi, K., Sugimoto, Y., Murayama, K., & Ando, J. (2011). A simple syllogism-solving test: Empirical findings and implications for g research. Intelligence, 39, 89-99. PDF   Online Article