SBIR-STTR Award

Updating the tryon multivariate analysis computer system
Award last edited on: 11/5/2002

Sponsored Program
SBIR
Awarding Agency
NIH : NIMH
Total Award Amount
$550,000
Award Phase
2
Solicitation Topic Code
-----

Principal Investigator
Robert B Dean

Company Information

D2 Associates (AKA: D Two Associates)

525 Aldine Avenue Unit 602
Chicago, IL 60657
   N/A
   N/A
   N/A
Location: Single
Congr. District: 05
County: Cook

Phase I

Contract Number: 1R43MH038975-01A2
Start Date: 00/00/00    Completed: 00/00/00
Phase I year
1985
Phase I Amount
$50,000
The prime long-term objective of this project is to update, enhance, and distribute two computer programs utilizing the unique multivariate analysis techniques developed by the psychologist Robert Tryon with NIH support during the 1960s. One long-term goal is to produce an enhanced all-Fortran version of a main BCTRY82 System, portable to most large computers. A second long-term goal is to produce versions of a smaller TRYCLUST program, for use in both microcomputer and supercomputer environments. Tryon's techniques are very useful for the following biomedical analytical tasks: analysis of the dimensionality of assessment inventories; construction of reliable assessment scales from large item pools; comparison of factor structures across diverse clinical groups; development of clinical taxonomies, produced by clustering cases in a multidimensional space defined by reliable assessment scales; Monte Carlo prediction of important outcome or criterion variables from taxonomic group membership.Phase I TRYCLUST work will involve expanding its current capabilities and testing the expanded program on microcomputers and on a variety of large machines. Phase I BCTRY82 work will focus on converting the present code to Fortran V, redimensioning the program to handle very large datasets, and adding a new statistical program, as a feasibility demonstration. Phase I tasks are straightforward and should be successful. Phase II tasks are a logical extension of Phase I work and should likewise be successful. These programs will fill a special niche in multivariate applications software, and their commercial distribution in microcomputer to supercomputer versions should be successful.National Institute of Mental Health (NIMH)

Phase II

Contract Number: 2R44MH038975-02
Start Date: 00/00/00    Completed: 00/00/00
Phase II year
1987
Phase II Amount
$500,000
The long-term objective of this project is to update, enhance, and commercially distribute two computer programs that implement the unique multivariate analysis techniques developed during the 1960s. One main goal is to produce an enhanced Fortran 77 version of the main Tryon system (TRYSYS), portable across all mainframe computers. A second goal is to refine and greatly expand a new Fortran program (TRYCLUS) specifically designed for maximum portability and enhanced user-friendliness.Tryon multivariate analysis techniques are especially useful for the following biomedical research tasks: analysis of the dimensionality of assessment inventories; construction of reliable assessment scales from large item pools; comparison of factor structures across diverse clinical groups; development of clinical taxonomies, produced by clustering cases in a multidimensional space defined by reliable assessment scales; and Monte Carlo prediction of important outcome or criterion variables from taxonomic group membership.TRYSYS work will focus on systematically updating the code so that it is written completely in Fortran 77 and is parameterized, for ease in adjusting the size of datasets permitted to the amount of computer memory available. TRYCLUS work will focus on adding additional data processing and statistical analysis techniques and further enhancing its user-friendliness, especially in the microcomputer environment.National Institute of Mental Health (NIMH)