Analyzing Fertility Measures and Reproductive Age

The question asks to identify fertility measures that specifically focus on women within the reproductive age group of 15 to 45 years.

Understanding Fertility Measurement Options

• Age-Specific Fertility (B): This measure calculates fertility rates for specific age groups. Demographers typically divide the reproductive span (e.g., 15-45 years) into narrower age brackets (like 15-19, 20-24, etc.) to compute these rates. It directly uses data from women within defined reproductive age intervals.
• Total Fertility Rate (C): This is a summary measure representing the average number of children a woman would have if she experienced the current age-specific fertility rates throughout her reproductive lifespan. Since it's derived from age-specific rates across the reproductive years, it inherently focuses on the 15-45 age group.
• Completed Family Size (A): This measure looks at the average number of children born to women who have finished childbearing. While related to the reproductive period, its definition focuses on completed fertility rather than exclusively measuring rates *within* the 15-45 age bracket at specific times like age-specific fertility.
• Crude Birth Rate (D): This rate is calculated by dividing the total number of live births in a year by the total mid-year population (including all age groups, males and females). It does not restrict the denominator to women of reproductive age, making it less specific to the 15-45 age category.

Conclusion on Age-Specific Measures

Based on the definitions, Age-Specific Fertility (B) and Total Fertility Rate (C) are the measures that directly and exclusively consider women within the 15-45 reproductive age category for their calculations and interpretations.

Therefore, the correct options are B and C only.