When conducting an in-depth comparative analysis of Howard Gardner's 'Theory of Multiple Intelligences' and Louis Thurstone's 'Theory of Primary Mental Abilities', which of the following statements most accurately highlights the core conceptual and structural difference between them?

📌 Core Theoretical Concept:

Howard Gardner's 'Theory of Multiple Intelligences' (1983) and Louis Thurstone's 'Theory of Primary Mental Abilities' (1938) both challenge Spearman's general intelligence (G-factor) by proposing a multi-factor view of human cognitive capacities. Thurstone used the statistical method of factor analysis to isolate 7 primary mental abilities (such as verbal comprehension, numerical ability, spatial relations, etc.) which are primarily focused on cognitive and academic performance. In contrast, Howard Gardner relied on neuropsychological evidence and case studies of brain damage to argue that intelligence is composed of multiple autonomous domains (musical, bodily-kinesthetic, interpersonal, etc.) that extend far beyond traditional academic assessments into real-world competencies. Therefore, option (A) most accurately underscores the philosophical and structural differences between the two theories.

📊 Key Exam Points:

• Thurstone's Model: Identified 7 primary mental abilities using factor analysis, deeply rooted in academic and mental operations.
• Gardner's Model: Proposed initially 7 and later 8-9 distinct, relatively independent intelligence domains tailored for diverse life skills.
• Elimination of Option (B): Neither Thurstone nor Gardner advocated a strict hierarchical structure with a G-factor at the apex; hierarchical views belong to theorists like Vernon or Carroll.
• Elimination of Options (C & D): Gardner used neurological and clinical data rather than standard IQ tests alone, while Thurstone relied heavily on empirical statistical factor analysis rather than pure qualitative case studies.