FAQs
FAQs for HLM 7
 

If you have HLM 7 installed, please check the help file of HLM 7 via the Contents option on the Help menu and the PDF copy of the HLM 7 manual via the HLM 7 Manual option on the Help menu. Another source for HLM 7 questions is our HLM 7 online list of PDF files.

 
FAQs for HLM 6
 

If you have HLM 6 installed, please check the help file in HLM 6. Recent additions to HLM 6 can be found in our HLM 6 online list of PDF files.

Changes made to HLM 6.07 in the service release (September 2009) are listed below.

  • The p-values from the fixed effects tables were off for very small degrees of freedom.
  • Will now read files up to SPSS version 17.
  • Fixed various problems related to multiple imputation.
  • Fixed a centering problem.
  • Problem with degrees of freedom fixed.
  • Fixed the annoying problem of always wanting to write to the root of the c: drive. Now will always remember where you were and start there.

Changes made to HLM 6.06 in the service release are listed below.

  • Programs would occasionally declare matrices non-positive definite when they were actually positive definite.
  • Will now read files from SPSS and Stata, up to SPSS version 16 and Stata version 10.
  • Weighted HGLM (non-linear) model terminated prematurely in some cases.
  • Various multiple imputation problems (Note that the problem where the averaged output is nonsensical when one or more of the sub-analyses failed will not be fixed until version 7).
  • A problem in the hcm2 chi-squares for the random effects has been identified and fixed.
  • Weighted HGLM (non-linear) model terminated prematurely in some cases.
  • Improvement to design weights.
  • ASCII/SAS residual file format problem.
  • Various multiple imputation problems (Note that the problem where the averaged output is nonsensical when one or more of the sub-analyses failed will not be fixed until version 7).
  • Mixed-model window wouldn't scroll.
  • Improvements to the Exploratory Analysis interface.

Changes made to HLM 6.05 in the service release are listed below.

  • programs would occasionally declare matrices non-pd when they were actually pd
  • will now read files from SPSS and Stata, up to SPSS version 16 and Stata version 10.
  • Weighted HGLM (non-linear) model terminated prematurely in some cases.
  • various multiple imputation problems (Note that the problem where the averaged output is nonsensical when one or more of the sub-analyses failed will not be fixed until version 7)
  • A problem in the hcm2 chi-squares for the random effects has been identified and fixed.
  • Weighted HGLM (non-linear) model terminated prematurely in some cases.
  • improvement to design weights
  • ASCII/SAS residual file format problem
  • various multiple imputation problems (Note that the problem where the averaged output is nonsensical when one or more of the sub-analyses failed will not be fixed until version 7)
  • mixed-model window wouldn't scroll.
  • improvements to the Exploratory Analysis interface.

Changes made to HLM 6.04 in the service release are listed below.

  • There was a long standing bug in reading the missing values from an SPSS file. Before v6.04, the programs would only recognize the straight missing code. Now, it will also do the set of values or range that SPSS allows for.
  •  The HLM2 design weighting implementation was completely redone. Note that from now on, weights at the "highest" level are considered to be marginal, and weights at the lower level(s) are assumed to be conditional.
  • The HLM3 design weighting implementation was completely redone. Note that from now on, weights at the "highest" level are considered to be marginal, and weights at the lower level(s) are assumed to be conditional.
  • Problems in the HLM3 multinomial residual files were also corrected.
  • Chi-squares in the column-level result tables were incorrect and are now fixed.
  • Graphing based on MDM files made with runtime deletion occasionally produced a "T's don't match" error message. This problem has now been fixed.

Changes made to HLM 6.02 in the service release (October 2006) are listed below.

  • Compatibility with data files created using SPSS14 and SPSS15 added.
  • A level-1 SYSTAT file problem was fixed.

Changes made to HLM 6.01 in the service release (May 2005) are listed below.

  • During the creation of residual files in the presence of missing data, some level-2 units were incorrectly deleted.
  • Use of listwise deletion at runtime could cause a ?T?s don?t match? error message during graphing.
  • When weighted analyses are performed with HLM 6.0, parts of the output file are not currently produced. This has been added in HLM 6.02

Changes made to HLM 6.00 (released October 2004) in this service release (April 2005) are listed below.

  • All modules will be able to read up to SPSS 13 *.sav files.
  • Various bug fixes, most graph related.
  • Entry added to File menu so that users can save mixed models as well as hierarchical models.
  • Addition of reliability and variance tables when weighting is specified (HLM2 and HLM3 modules).
  • EM Laplace used for dichotomous outcome instead of Fisher scoring (HGLM models only; HLM2 and HLM3 modules).
 
FAQs for HLM 5
 

Got problems with HLM 5? First check your version (see Help, About within HLM program), If it is not HLM5.05, please upgrade it first.

The HLM 5 FAQ online contains a list of error message and how to deal with it, and any new problems reported recently. This information is only available online, and not in the help file in HLM 5.

The biggest problem with the HLM 5 currently is the import of data produced by new releases of statistical software packages such as SPSS 12. For a workaround, please see the HLM 5 FAQ online.

We apologise for any inconvenience and/or frustration this problem may have caused. Should you have further problems, please feel free to contact technical support directly at This email address is being protected from spambots. You need JavaScript enabled to view it.. Please provide the product version number and your software serial number/CD key, as this service is only available to registered users of software published by SSI.