HDI Components Exclude Gender Equality

Steps:

• Recall HDI measures average achievement in health, education, and standard of living.
• Identify core components: life expectancy at birth, mean and expected years of schooling, and GNI per capita.
• Compare choices to components: B, C, and D directly align with income, health, and education metrics.
• Determine A does not match any HDI dimension, as gender equality is assessed separately via GDI.

Why A is correct:

• HDI formula aggregates life expectancy, education index, and income index; gender equality is not a factor in its calculation.

Why the others are wrong:

• B: Higher income per head raises the income index, increasing HDI.
• C: Longer life expectancy boosts the health dimension, elevating HDI.
• D: More years of schooling improves the education index, raising HDI.

Final answer: A