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In assessing the effectiveness of the global polio vaccination program started in 1988, a student collected Graphs A and B from two reputable sources - HSC - SSCE Biology - Question 26 - 2011 - Paper 1
Question 26
In assessing the effectiveness of the global polio vaccination program started in 1988, a student collected Graphs A and B from two reputable sources. Graph A: Repo... show full transcript
Worked Solution & Example Answer:In assessing the effectiveness of the global polio vaccination program started in 1988, a student collected Graphs A and B from two reputable sources - HSC - SSCE Biology - Question 26 - 2011 - Paper 1
Step 1
Identify TWO differences and TWO similarities in the data
Answer
Differences:
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Reported vs Estimated Cases: Graph A shows reported global polio cases, while Graph B provides estimated cases. This could lead to discrepancies between the two sets of data based on reporting accuracy.
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Yearly Trends: The trends in Graph A indicate a sharp decline in reported cases, particularly after 1990, while Graph B consistently estimates higher numbers initially, suggesting a potential underreporting in Graph A.
Similarities:
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Overall Decline: Both graphs illustrate a general decline in polio cases over the years, demonstrating the success of the vaccination program.
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Peak Year: Both data sets indicate that 1988 saw the highest number of cases, establishing a baseline for evaluating the vaccination impact.
Step 2
Provide reasons in favour of TWO additional types of data required
Answer
Reasons for Additional Data Types:
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Geographical Data: Understanding the regional distribution of polio cases would help identify which areas are most affected and may require targeted vaccination efforts.
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Demographic Data: Gathering information on the age and health status of individuals affected by polio can assist in tailoring vaccination campaigns and addressing specific vulnerable populations.