An appraiser develops a $3,200 adjustment for a fireplace based on a single paired sale. The subject has a fireplace; Comparable A does not. The appraiser applies +$3,200 to Comparable A. Later, the appraiser identifies a second pair showing a $4,600 fireplace contribution. The appraiser replaces the original adjustment with $3,900 — the simple average — and applies it to Comparable A. What is the appropriate USPAP-compliant action regarding the adjustment amount?
Correct Answer
C) The appraiser should weight the adjustments by the time proximity and similarity of each pair and derive a supported point estimate.
Why this is correct: Standards Rule 1-4's sales comparison subsection requires the appraiser to analyze such comparable sales data as are available and to support the adjustments drawn from them, and analysis means judging each indication before combining it with another. Two pairs that differ by $1,400 are telling the appraiser something about the reliability of one or both, and the resolution is to weight them by how recent each pair is, how similar the properties are and how well each transaction was verified, then state a supported point estimate. The average is a permissible outcome of that weighing, but only if the weighing has been done. Why the other choices are wrong: 'Using the average is acceptable because averaging two market-derived pairs increases statistical reliability' mistakes arithmetic for analysis; two observations do not confer statistical reliability, and the mean of a good indication and a poor one is simply a poorer indication. 'The appraiser must use only the most recent pair ($4,600) as it reflects the most current market conditions' discards relevant data on a single criterion; recency is one factor among several and does not automatically outrank comparability or verification. 'Averaging unsupported pairs violates USPAP; the appraiser must discard both and find three or more pairs to compute a median' invents a minimum sample size that no standard imposes, and USPAP requires the adjustment to be supportable rather than to rest on a prescribed count. Exam tip: When answer choices offer a mechanical rule and a reasoned one, the reasoned one is the USPAP answer. Standards specify what must be analyzed and supported, not which formula to use.
Why This Is the Correct Answer
Weighting by time proximity and similarity applies the criteria that actually govern how much confidence an indication deserves, and it produces a single supported figure rather than a compromise. The result may still be near $3,900, but it arrives with reasoning attached. This is the answer that satisfies both the requirement to analyze the available data and the requirement to support the adjustment.
Why the Other Options Are Wrong
Option A: Using the average is acceptable because averaging two market-derived pairs increases statistical reliability.
Two data points do not create statistical reliability, and averaging is not analysis. If one pair is markedly better evidence than the other, the mean is worse than simply using the better pair. The claim also treats an arithmetic operation as though it supplied the support the standard requires.
Option B: The appraiser must use only the most recent pair ($4,600) as it reflects the most current market conditions.
Recency is one relevance criterion, not a trump card. A more recent pair drawn from a dissimilar property or a poorly verified transaction can be weaker evidence than an older, closely matched pair. Discarding data because of a single attribute leaves relevant market evidence unanalyzed.
Option D: Averaging unsupported pairs violates USPAP; the appraiser must discard both and find three or more pairs to compute a median.
No standard sets a minimum number of paired sales, and none prescribes the median over any other reconciliation. Requiring three pairs would be unworkable in thin markets where a feature simply does not appear that often. The obligation is that the adjustment be supportable given the data reasonably available.
Weigh, then say
Weigh the evidence, then say a number. USPAP never tells you which arithmetic to use; it tells you to analyze what you have and to support what you conclude. An average with reasoning behind it is fine; an average used to avoid reasoning is not.
How to use: When options offer averaging, taking the newest, taking the median, or weighing and concluding, choose the one that describes judgment applied to the data. The others are all ways of skipping the analysis.
Exam Tip
Distrust any option that states a numeric threshold — three pairs, five comparables, a 15% limit — unless you can name the rule that sets it. Invented thresholds are a standard distractor pattern in USPAP items.
Common Mistakes to Avoid
- -Averaging indications of unequal quality without weighting them
- -Treating the most recent sale as automatically the most relevant
- -Believing USPAP prescribes a minimum number of comparables or pairs
Concept Deep Dive
Analysis
USPAP is largely silent on technique and insistent on support. Standards Rule 1-4's sales comparison subsection requires the appraiser to analyze the comparable sales data available, and reconciliation of conflicting indications is part of that analysis rather than a step that can be automated. When two paired sales disagree by $1,400 on the same feature, the disagreement is itself information: one pair may be older, less similar, or less well verified. Weighting them accordingly and stating a supported point estimate is the reasoning an intended user can follow and a reviewer can test, which is precisely what a mechanical average conceals.
Background Knowledge
You need to know that Standards Rule 1-4 governs the development of the approaches, with its first subsection covering sales comparison, and that USPAP prescribes duties rather than formulas. You also need the criteria by which one paired sale outranks another: date of sale, physical and locational similarity, quality of verification, and whether other differences between the two properties were themselves adjusted.
Real-World Application
An appraiser with two fireplace pairs, one from six months ago in the subject's own subdivision and one from two years ago three miles away, gives the closer pair the greater weight and reports a $3,400 adjustment with a sentence explaining why. The workfile shows both pairs and the reasoning that separated them.
More Sales Comparison Questions
Excess land differs from surplus land in that excess land:
A paired sales analysis reveals that homes with stainless-steel appliances sell for $2,100 more than identical homes with standard appliances — but only when the homes are priced below $350,000. In the subject’s neighborhood, median sale price is $410,000. What is the appraiser’s obligation regarding the $2,100 appliance adjustment?
GLA differs by 210 sq ft between subject and comparable. Paired sales support $65 per sq ft of living area. The line adjustment is:
Paired sales are drawn from transactions six months apart in a stable market. The time adjustment needed is:
The most appropriate unit of comparison is determined by:
A comparable superior to the subject in every adjusted category should produce an indication that is:
Three sales support $520,000; the borrower's purchase contract is $505,000. May the appraisal conclude above the contract price?
A comparable sold for $300,000 with the seller carrying a loan 2 points below market, a benefit worth $8,000. What is its cash-equivalent price?
Why is a foreclosure sale generally a poor comparable in a stable market?
A comparable sold 8 months ago for $250,000 in a market appreciating 6% per year. What is the time-adjusted price?
People Also Study
Real Estate Market
13.6% of exam
Property Description
11.8% of exam
Land or Site Valuation
4.5% of exam
Cost Approach
13.6% of exam
Income Approach
8.2% of exam