Scientific Software International (SSI) publishes statistical data analysis software: LISREL (structural equation model/SEM, survey generalized linear model/SGLIM), 
HLM (hierarchical linear modeling, multilevel model), SuperMix (mixed models, mixed-effects program, MIXREG, MIXOR, MIXNO and MIXPREG) and Item Response Theory/IRT (BILOG-MG, MULTILOG, PARSCALE)Scientific Software International (SSI) publishes statistical data analysis software: LISREL (structural equation model/SEM, survey generalized linear model/SGLIM), 

HLM (hierarchical linear modeling, multilevel model), SuperMix (mixed models, mixed-effects program, MIXREG, MIXOR, MIXNO and MIXPREG) and Item Response Theory/IRT (BILOG-MG, MULTILOG, PARSCALE)Scientific Software International (SSI) publishes statistical data analysis software: LISREL (structural equation model/SEM, survey generalized linear model/SGLIM), 

HLM (hierarchical linear modeling, multilevel model), SuperMix (mixed models, mixed-effects program, MIXREG, MIXOR, MIXNO and MIXPREG) and Item Response Theory/IRT (BILOG-MG, MULTILOG, PARSCALE)

E  End user price list

End User License Agreement (EULA) for SSI software products.

Rental licenses

Single 12 month non-academic IRT licenses

Perpetual single and concurrent user licenses (electronic installation applications)

  • 1 Single user license permits 1 installation on 1 personal computer for 1 specific end user.
  • 1 Individual concurrent user license permits multiple installations on multiple personal computers for 1 specific end user.
  • If both the number of different end users and the number of computers exceed the number of concurrent user licenses, third-party license management software such as KeyServer is required to restrict the number of end users that accesses the software at the same time to the number of concurrent user licenses.
  • All single user and concurrent user licenses are only delivered electonically in the sense that the URL for the installation application, the installation and activation instructions, and the billing and delivery invoices are sent via email to the email address provided in the End User Data window of the SSI Shopping Cart on the same or the next business day.
  • All single user and concurrent user licenses are perpetual (permanent) and require no maintenance or renewal fees.
  • All paid single user upgrade licenses are optional.
  • All free single user license and concurrent user license upgrades are optional, but are strongly recommended for receiving technical support.
  • SSI, Inc. offers volume discounts for single and concurrent user licenses. For example, a 5% discount for 2 licenses, a 6% discount for 3 licenses, a 7% discount for 4 licenses, an 8% discount for 5 licenses, a 13% discount for 10 licenses, a 20% discount for 20 licenses, a 23% discount for 30 licenses, a 26% discount for 40 licenses, a 30% discount for 50 licenses, a 35% discount for 100 licenses, and a 40% discount for 200 licenses.
  • The perpetual licenses for BILOG-MG, IRTPRO, and PARSCALE for Windows are restricted to academic research and instructional use only and the use for assessment purposes is specifically excluded. If these software products are to be used for assessment work, see single 12 month non-academic IRT licenses.
  • To order single and concurrent user licenses, please click here.

SOFTWARE PRODUCT

New Single User License

Single User License Upgrade

Concurrent user license

VERSION

PRICE in US$

VERSION

PRICE in US$

PRICE in US$

AUXAL

3

500

3

150

750

BILOG-MG

3

250

3

150

375

HLM

7

495

7

195

742.50

LISREL

9.1

495

9.1

195

742.50

IRTPRO

2.1

495

2.1

395

742.50

PARSCALE

4

250

4

150

375

SuperMix

1

425

1

-

637.50


Rental licenses (electronic installation applications)
  • 1 Rental license permits 1 installation on 1 personal computer for 1 specific end user.
  • Rental licenses are only delivered electonically in the sense that the URL for the installation application, the installation and activation instructions, and the billing and delivery invoices are sent via email to the email address provided in the End User Data window of the SSI Shopping Cart on the same or the next business day.
  • The rental licenses for the BILOG-MG, IRTPRO, and PARSCALE for Windows are restricted to academic research and instructional use only and the use for assessment purposes is specifically excluded. If these software products are to be used for assessment work, see single 12 month non-academic IRT licenses.
  • The rental editions of SuperMix for Windows are not available yet.
  • SSI, Inc. offers a discount equivalent to the minimum of the amount paid up to the final rental period and the price of a new single user license for end users converting their existing rental licenses to perpetual single user licenses. Please contact Gerhard Mels (mels@ssicentral.com) regarding placing the corresponding order after you have created a new user account for the SSI Shopping Cart. To create a new user account for the SSI Shopping Cart, please click here.
  • SSI, Inc.reserves the right to change these prices without notice.
  • To order a rental license, please click here.

Program

Version

Price in US$

6 Month Rental License

12 Month Rental License

HLM

7

75

130

LISREL

9.1

75

130

BILOG-MG

3

65

110

IRTPRO

2.1

75

130

PARSCALE

4

65

110


Single 12 month non-academic IRT licenses (electronic installation applications)
  • 1 Single 12 month non-academic license permits 1 installation on 1 personal computer for 1 specific end user.
  • Single 12 month non-academic licenses are only delivered electonically in the sense that the URL for the installation application, the installation and activation instructions, and the billing and delivery invoices are sent via email to the email address provided in the End User Data window of the SSI Shopping Cart on the same or the next business day.
  • SSI, Inc.reserves the right to change these prices without notice.
  • To order a single 12 month non-academic  license, please click here.

Program

Version

Price in US$

BILOG-MG

3

475

IRTPRO

2.1

950

PARSCALE

4

475

 

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