How does the intended use of an appraisal bear on how much statistical support is needed?
Correct Answer
D) Scope of work follows what credible results require
Why this is correct: Scope of work follows what credible results require. The governing concept is the USPAP Scope of Work Rule, which requires the appraiser to perform sufficient analysis to produce credible results for the intended use. More complex uses (e.g., litigation) may require more statistical support. Why the other choices are wrong: It does not; the same support is always required is wrong because scope of work is flexible based on intended use. More support is needed only for commercial work is wrong; the need depends on the assignment's complexity, not property type. Support requirements are fixed by state regulation is wrong; while states may have rules, USPAP's scope of work is fundamental. Exam tip: The intended use dictates the necessary scope of work and depth of analysis; this must be judged and disclosed in every assignment.
Why This Is the Correct Answer
The Scope of Work Rule ties the extent of research and analysis to what credible results require for the intended use, so support requirements vary with the assignment.
Why the Other Options Are Wrong
Option A: It does not; the same support is always required
Support requirements are not uniform. They follow what credible results require for the particular intended use.
Option B: More support is needed only for commercial work
Property type does not determine the requirement. A complex residential assignment may need more support than a simple commercial one.
Option C: Support requirements are fixed by state regulation
State regulation sets licensing and some assignment requirements but does not fix statistical support levels.
Credible for This Use
Credible for This Use. The bar moves with the assignment, and the peer standard is the floor.
How to use: Ask what this conclusion has to withstand. Litigation and a routine refinance are not the same test.
Exam Tip
Whatever scope is chosen must be disclosed. An adequate scope inadequately disclosed is still a reporting problem.
Common Mistakes to Avoid
- -Applying a uniform level of support to every assignment
- -Tying support requirements to property type
- -Choosing a scope without disclosing it
Concept Deep Dive
Analysis
The Scope of Work Rule makes the extent of research and analysis a function of what credible assignment results require for the intended use — not a fixed quantity, and not something set by property type or regulation. Intended use bears on that directly. An appraisal supporting a routine mortgage on a tract house in an active subdivision needs less statistical depth than one supporting litigation over a market conditions dispute, where the analysis will be examined by opposing experts and the conclusion's support tested. The same reasoning cuts both ways: an assignment requiring heavy support cannot be shortened for convenience, and one requiring less does not need statistics added for appearance. The floor remains the peer standard and intended user expectations, and whatever scope is chosen must be disclosed so a reader can evaluate it. The distractors offer fixed rules — uniform support, a commercial-only requirement, and state-set thresholds — none of which is how the rule operates.
Background Knowledge
USPAP's Scope of Work Rule requires the scope to be sufficient for credible assignment results, at least equal to peers' actions in similar assignments and to intended user expectations, with the scope disclosed in the report.
Real-World Application
An appraiser preparing a litigation assignment builds a regression and paired sales analysis where a routine mortgage assignment would have used a simpler market trend.
More Statistics Questions
A set of comparable sales has a mean of $250,000 and a standard deviation of $20,000. What is the coefficient of variation?
A property sold for $400,000 and resold three years later for $463,050 with no physical change. What compound annual rate does this indicate?
A histogram of neighborhood sale prices shows two distinct peaks. What does this most likely mean?
What does it mean to validate a regression model?
In a market study, what does a frequency distribution of sale prices show?
An appraiser includes months elapsed since each sale as a variable in a price model. What is this intended to capture?
An appraiser presents a statistical analysis in a report. What must accompany it for the reader to weigh it?
An R-squared of 0.86 in a sales model indicates that:
Which measure would best summarize the most common lot size in a subdivision?
Paired sales analysis and regression differ mainly in that regression:
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