IAAO 311 (ACTUAL 2026/2027) QUESTIONS AND ANSWERS GRADED A+

IAAO 311 (ACTUAL 2026/2027) QUESTIONS AND ANSWERS GRADED A+
The predictive power of the COV depends on the extent the
data is? ---answers---normally distributed
A scatter diagram depicting the relationship between sales
ratio and effective age that portrays a downward sloping trend
indicates a (blank) correlation which reflects (blank) ratios in
older residences. ---answers---negative / lower
PRDs greater than 1.03 indicate? ---answers---regressive or
under appraisal of higher value properties
PRDs les than .98 indicate? ---answers---progressive or over
appraisal of higher value properties
The (blank) relates to equality between lower and higher value
parcels. ---answers---PRD
A confidence interval is always? ---answers---2 tailed
Standard error is the same as? ---answers---standard
deviation
(blank) is a statistical technique for estimating unknown data
based on known and available data. ---answers---MRA
In regression statistics, the (blank) is the ratio of a regression
coefficient to its standard error . ---answers---t-value
x1, x2, x3, represent? ---answers---variables
The successful application of MRA models in mass appraisal
requires accurate (blank), adequate sales, good model building
skills, and variables to capture significant (blank) influences. -
--answers---property data / location
The regression statistic (blank) is the percentage of variation
in the sales price is explained by the model. ---answers---R2
In regression statistics, the standard deviation of the
regression error is termed the (blank). ---answers---SEE /
standard error of estimate
What is a good strength of feedback? ---answers---separates
land and improvements
What is a weakness of feedback? ---answers---proprietary
algorithms and limited software
What is this formula? V=Sc + ADJc ---answers---sales
comparison model

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