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VA Technical Reference Model v 24.4

Hierarchical Linear and Nonlinear Modeling (HLM)
Hierarchical Linear and Nonlinear Modeling (HLM) Technology

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Technologies must be operated and maintained in accordance with Federal and Department security and privacy policies and guidelines. More information on the proper use of the TRM can be found on the TRM Proper Use Tab/Section.

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Description: Hierarchical Linear and Nonlinear Modeling (HLM) software is a statistical package used for hierarchical linear modeling. This technology has statistical features such as cross-classified random effects for linear models for three-level data, and linear and nonlinear models for four-level data. Additionally, the software enables a wide choice of estimation options, integrated likelihood ratio hypothesis testing, graphics options, and the ability to handle heterogeneous hierarchical linear models.

This technology is available in five licenses, HLM Standard, HLM Network, HLM Commercial, HLM Basic and HLM Trial. This entry covers all five licenses.

This technology does not utilize a database to store data as data is stored on the user`s local drive.
Technology/Standard Usage Requirements: Users must ensure their use of this technology/standard is consistent with VA policies and standards, including, but not limited to, VA Handbooks 6102 and 6500; VA Directives 6004, 6513, and 6517; and National Institute of Standards and Technology (NIST) standards, including Federal Information Processing Standards (FIPS). Users must ensure sensitive data is properly protected in compliance with all VA regulations. Prior to use of this technology, users should check with their supervisor, Information Security Officer (ISO), Facility Chief Information Officer (CIO), or local Office of Information and Technology (OI&T) representative to ensure that all actions are consistent with current VA policies and procedures prior to implementation.
Section 508 Information: This technology has not been assessed by the Section 508 Office. The Implementer of this technology has the responsibility to ensure the version deployed is 508-compliant. Section 508 compliance may be reviewed by the Section 508 Office and appropriate remedial action required if necessary. For additional information or assistance regarding Section 508, please contact the Section 508 Office at
Decision: View Decisions

Decision Source: TRM Mgmt Group
Decision Process: One-VA TRM v23.4
Decision Date: 04/05/2023 at 00:57:30 UTC
Introduced By: TRM Analysis
Vendor Name: Scientific Software International, Inc
- The information contained on this page is accurate as of the Decision Date (04/05/2023 at 00:57:30 UTC).