Under the Structure of Intellect Model proposed by J.P. Guilford, into how many independent factors has intelligence been classified based on its dimensions, and what are the correct components of that three-dimensional cube structure?

Understanding Guilford's Structure of Intellect Model

According to J.P. Guilford's Structure of Intellect (SI) theory, intellectual abilities are classified along three independent dimensions:

• Operations: 5 types (cognition, memory, divergent production, convergent production, evaluation)
• Contents: 4 types (figural, symbolic, semantic, behavioral)
• Products: 6 types (units, classes, relations, systems, transformations, implications)

The multiplicative combination of these three dimensions initially yields 5 × 4 × 6 = 120 independent intellectual factors, which were later expanded through revisions to 150 and ultimately 180 factors.