Others titles

  • SSA Disability Determination Services Accuracy Data Starting From 2007
  • SSA Disability Medical Determinations Accuracy Data Starting From 2007
  • SSI And SSDI Determination Services Accuracy Data Starting From 2007


  • Social Security Disability Insurance
  • Supplemental Security Income Disability
  • SSI Disability
  • Disability Determination Services
  • Disability Determination Accuracy
  • SSI Accuracy Rate
  • SSDI Accuracy Rate
  • Accuracy Rate Margin Of Error
  • Annual Accuracy Rate

SSA Disability Determination Services Accuracy Data

This dataset provides accuracy rate figures at the state and national level for SSA disability medical determinations made by the state Disability Determination Services (DDS).

Log in to download

Get The Data

  • The data in CSV format DOWNLOAD
  • Metadata in Human Readable format (PDF) DOWNLOAD
  • Metadata in Machine Readable format (JSON) DOWNLOAD
Your Data License
  • Research
    Non-Commercial, Share-Alike, Attribution Free Forever
  • Commercial
    Commercial Use, Remix & Adapt, White Label Buy Subscription


SSA pay disability benefits through two programs: the Social Security disability insurance program and the Supplemental Security Income (SSI) program. An application for disability benefits can be filed online, in the local Social Security office, or by phone. SSA review the application to make sure some basic requirements for disability benefits are met. If these requirements are met, the disability application is sent to the Disability Determination Services (DDS) office in the state in which the applicant resides. Using federal laws, regulations, and Agency policies and procedures, this state agency completes the disability determination for Social Security. The Social Security Administration (SSA) reviews a sample of initial disability claims prior to a final determination in order to assess the accuracy component of DDS performance. The data contained in this dataset shows the results of this review for fiscal years 2007 and later. The accuracy rates provided are the combined (weighted) results of the Social Security review of initial-level favorable and unfavorable determinations and reflect cases with a substantive error (i.e., those that result in a changed decision from favorable to unfavorable or unfavorable to favorable), and cases returned to the DDS for additional action and the DDS did not complete requested actions timely (about 90 days).

The Code of Federal Regulations establishes that SSA will conduct a quality assurance review of initial DDS disability determinations. The purpose of the review is to ensure that the states are complying with our regulations and other written guidelines, including meeting and maintaining established national performance standards. These standards help ensure effective and uniform administration of the disability programs and measure whether the performance of the disability determination function by each state agency is acceptable. The performance standards are also designed to improve overall state agency performance in the disability determination process, and to ensure that benefits are made available to all eligible persons in an accurate and efficient manner. A random selection of approximately 70 favorable and 70 unfavorable determinations from every state every three months. From this, we are able to project the overall accuracy rate with respect to the determinations made by each DDS.

Accuracy rates represent a mean percentage of the upper and lower limits of a mathematically calculated variability range. The mathematical formula used to establish these limits considers the size of the sample and, indirectly, the number of deficiencies found. The formula used also incorporates a mathematical constant “Z score” calculated to produce a variability range acceptable at a 95.0 percent confidence level. Sampling variability is expressed as plus or minus percentages and shown (to the second decimal) following each accuracy rate quoted. Thus, we can, for example, be 95.0 percent sure that an accuracy rate of 94.2 percent, based on the review of a sample of the workload, with a sampling variability of +/- 3.19 could be no higher than 97.4 percent and no lower than 91.0 percent if the entire workload were reviewed. These results are acquried by the variability percentage to the accuracy rate to obtain the upper limit and subtracting the variability percentage from the accuracy rate to obtain the lower limit. As the sample accuracy rate approaches 100 percent, the system rejects a sampling variability that exceeds 100 percent. The accuracy rate of the universe cannot exceed 100 percent. Therefore, in those instances, we manually compute the sampling variability and display an upper and lower limit. All accuracy percentage rates are weighted to reflect the data as they would appear if the total workload had been reviewed.

About this Dataset

Data Info

Date Created


Last Modified




Update Frequency


Temporal Coverage


Spatial Coverage

United States


John Snow Labs; U.S. Social Security Administration;

Source License URL

Source License Requirements


Source Citation



Social Security Disability Insurance, Supplemental Security Income Disability, SSI Disability, Disability Determination Services, Disability Determination Accuracy, SSI Accuracy Rate, SSDI Accuracy Rate, Accuracy Rate Margin Of Error, Annual Accuracy Rate

Other Titles

SSA Disability Determination Services Accuracy Data Starting From 2007, SSA Disability Medical Determinations Accuracy Data Starting From 2007, SSI And SSDI Determination Services Accuracy Data Starting From 2007

Data Fields

Name Description Type Constraints
Fiscal_YearThe Federal Fiscal Year (FY), a 12 month period from October through Septemberdate-
StateThe full name of state or "National" for country level valuesstring-
Percent_Of_Accuracy_EstimationThe accuracy rate, shown as a percentage of casesnumberlevel : Ratio
Sampling_Variability_PercentThe sampling variability, at the 95 percent confidence level, shown as a plus or minus percentagenumberlevel : Ratio
Confidence_Interval_Manually_ComputedSampling Variability (SV) manually computedstring-

Data Preview

Fiscal YearStatePercent Of Accuracy EstimationSampling Variability PercentConfidence Interval Manually Computed
2007Dist of Columbia97.31.19