The comprehensive analysis reveals a clear academic maturation process:
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Progressive improvement in average GPA across all phases
(2.62 → 2.81 → 2.87 → 2.91)
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Significant reduction in grade volatility
(0.48 → 0.31 → 0.15 → 0.10)
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Strong linear correlation in later terms
(R² = 0.855) indicating academic maturity
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Clear phase transitions showing systematic academic development