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Sales ComparisonEASY16.4% of exam

Market data show that buyers in a subdivision of split-level homes pay more for larger homes and for better condition. For a 1,650-sf subject in average condition, the appraiser looks for sales that include both larger and smaller homes and both better-kept and worse-kept homes. Why does the appraiser want sales on both sides of the subject?

Correct Answer

B) The value is then bounded by market prices, not projected beyond them

When some sales are superior and some inferior to the subject, the subject is placed within the array of sales, so the market itself sets an upper and a lower limit on its value. If every sale were on one side, the value would have to be projected beyond the data by adjustments that all run in one direction, and any error in the adjustment rate would pass straight into the result. Bracketed sales still need adjustment, the value is not a simple average of the prices, and bracketing does not make large adjustments more reliable.

Answer Options
A
The sales then need no adjustment for size or condition
B
The value is then bounded by market prices, not projected beyond them
C
The value can then be taken as the average of the sale prices
D
Larger adjustments then become acceptable without loss of reliability

Why This Is the Correct Answer

Option B is correct because sales that are superior and inferior to the subject place it within the ranked array of market prices. The value is then shown between limits set by actual sales instead of being projected beyond them by one-way adjustments.

Why the Other Options Are Wrong

Option A: The sales then need no adjustment for size or condition

Option A says bracketed sales need no adjustment for size or condition. The sales still differ from the subject and still need adjustment; bracketing only means those adjustments run in both directions.

Option C: The value can then be taken as the average of the sale prices

Option C says the value can be taken as the average of the sale prices. Bracketing locates the subject between sales; the conclusion rests on how the subject compares with each sale, not on averaging their prices.

Option D: Larger adjustments then become acceptable without loss of reliability

Option D says larger adjustments become acceptable without loss of reliability. Large adjustments still weaken an indication; bracketing reduces the risk of a one-way error but does not make large adjustments reliable.

Fence posts on both sides

A fence needs a post on each side of the gate; bracketing sales are the posts that hold the subject's value between them.

How to use: Use this when a question asks why sales on both sides of the subject are preferred.

Exam Tip

If every sale is on one side of the subject, look for the answer that points to extrapolation and one-way adjustment error.

Common Mistakes to Avoid

  • -Thinking bracketed sales need no adjustment
  • -Averaging the bracketing sale prices to reach a value
  • -Assuming bracketing makes large adjustments reliable

Concept Deep Dive

Analysis

The question tests the purpose of bracketing rather than its name. Sales on both sides of the subject let the value be located between known market prices; sales all on one side force the appraiser to extrapolate.

Background Knowledge

Bracketing means that for an important element the sales include at least one superior and at least one inferior to the subject. The subject then falls inside the range of market evidence, which is a stronger position than extrapolating from sales that are all better or all worse.

Real-World Application

An appraiser finds four sales, all larger than the subject. Before finishing, the appraiser searches again and adds a smaller sale so that the subject's size is bracketed and the size adjustment is tested from both directions.

bracketingextrapolationsuperior and inferior salesranking analysiscomparable selection
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