Jelaskan Karya-karya Thurstone dari Louis Leon Thurstone

1924: The Nature of Intelligence 1925: The Fundamentals of Statistics 1929: The Measurement of Attitude 1931: The Realibility and Validity 1935: The Vectors of Mind 1938: Primary Mental Abilities 1941: Factorial Studies of Intelligence 1944: A Factorial Study of Perception 1947: Multiple-factor Analysis''