Adjustment Index

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Adjustment Index

Any mathematical modification made to a data set to account and control for an exogenous situation that would otherwise distort the data. For example, temporary jobs are often created in November and December because of the Christmas season. A statistician likely will apply an adjustment index to the number of jobs created in those months so the unemployment rate is not artificially low.
References in periodicals archive ?
12 database was created for the exploratory factorial analysis with model adjustment indexes (Exploratory Structural Equation Modeling--E-SEM) and polychoric variables, in addition to obtaining adjustment indexes that indicated structure adequacy based on the study's population.
Initially, adjustment indexes generated for all four models were analyzed.
The adjustment indexes for the regional sample are greater, and still unacceptable ([chi square]/df = 3.
1998; 2002) which suggests elimination of item 25, presents better adjustment indexes in both of the samples in comparison to the previous models, although still not acceptable.
2003) for elimination of 15 items that are loaded by more than one factor, presents good adjustment indexes for the regional level sample ([chi square]/ df = 1.
2007), without the physiological activation scale, presents acceptable adjustment indexes for both the regional and national level samples.
Pushed by lenders for the freshest possible data on properties, Turner also can tap into the local multiple listing service and statistically derive adjustment indexes for small geographic areas based on the percentage difference between original asking prices and selling prices.
Additionally, common economic adjustment indexes are described.