Facets Rasch software: update history

Windows: Facets runs successfully under Windows 7, 8, 10, Vista, XP, (but not 2000, ME, NT, 98, 95, 3.1,) also runs under Fusion, Soft-PC, Virtual PC and Wine on the Mac, and Mandrake Linux 10.0 via CrossOver Office 3.1.
Hardware: Facets requires an Intel Pentium 4 (released in 2000) or later.

For bug reports and work-arounds, see problems.htm

Update procedure: When an update is released, all license holders are notified by email. For those eligible for free updates (within one year of original purchase or two years of renewal), the email contains an update download URL and an installation password. All licensees receive at least one free update.

To request updates, please use the mailform "Write here:" at the bottom of this webpage


    Facets 3.80.0 2-28-2016.
  1. Enhancement: Output Tables menu: Table 5 added as an option
  2. Enhancement: Score file= "Sign" column: 1 for positive facets, -1 for negative-oriented facets
  3. Enhancement: Table 7: Orientation of measure shown by "+" or "-" above "Measure" in Table 7 headings
  4. Enhancement: Table 8: intermediate category with zero count with "Keep" has infinite threshold shown as "infin." - approximated by ≈40 in the Anchorfile= output file
  5. Workaround: Group-anchoring. If all elements in a group have extreme scores, then they are reported as "Unmeasureable". To report measures, add dummy data for those elements with very small weights to make data measureable.
  6. Informative: Anchorfile= output file: "Group anchor this facet and/or the other facets (please experiment to see what works):"
  7. Informative: DIF tables: "Welch" replaced by "Rasch-Welch"
  8. Informative: Output Warning (3)! This is NOT referenced by a Model= specification
  9. Bug fix: Analysis window: avoid occasional failure in a color-selection routine shown as "Invalid use of null"
  10. Bug fix: Labels= specificatio: When too many elements (millions!) appear to be specified, now reported as Error Code 77.
  11. Bug fix: Output Tables: very small chi-square values now reported as .0
  12. Bug fix: Score file= "Displace" - displacement oriented to match facet, so unanchored measured is (anchored measure+displacement)
  13. Bug fix: Specification: Interrater = rater facet, agreement facet, agreement facet, ..... now matches facets correctly
  14. Bug fix: Table 2: "List of unspecified elements" - when Facets detected unidentified elements in one facet, it sometimes reported unidentified elements in other facets incorrectly.
    Facets 3.71.4 1-22-2014.
  1. Enhancement: Anchor output file. List thresholds: ; Rasch-Andrich Thresholds = 0,-1.0,-0.5, 1.5
  2. Bug fix: display Warning 3 for unused, but specified, rating scales.
  3. Bug fix: overflow when loading observations for Interrater=, "Facets 3.71.3 failed at Facets 42300 : 6 Overflow"
  4. Bug fix: random restart of Facets after clicking on Cancel in message box
    Facets 3.71.3 9-15-2013.
  1. Bug fix: at iteration 100 estimates may diverge
  2. Bug fix: Excel interface sometimes fails when plotting (winexcel.exe)
  3. Bug fix: Failure in subset detection: "Facets 3.71.2 failed at Facets 60570:6 overflow."
  4. Bug fix: Self-consistent subset numbering in all output
  5. Enhancement: Subsets=List: disjoint element listing in Table 6, but no subset rulers
  6. Enhancement: Warning (16) when element 0 appears to be active, but Keepasnull = 0
  7. Enhancement: Desktop shortcut is "Facets Rasch"
    Facets 3.71.2 5-29-2013.
  1. Bug fix/speed-up: corrections/improvements to "Inter-rater agreement" computation
  2. Bug fix/speed-up: corrections/improvements to "Validating subset connection" algorithm
  3. Bug fix/speed-up: prevent excessive dots on screen
  4. Bug fix: "SPSS interface: SPSS work file incorrect" message caused by faulty version of winspssg.exe
  5. Bug fix: prevent crash if Ctrl+F during subset detection
  6. Bug fix: again for undefined elements in an element range in the data. Example: here is a specification and data file:
    Title = "1-36 Bug in 3.71.1"
    Facets=2
    Models=?,?,B6
    Usort=1,2
    Unexpected=0
    Labels=
    1, Person
    1-2
    *
    2, Item
    ; 1-3 commented out
    4-6
    *
    Data=
    1, 1-6, 1,2,3,4,5,6 ; only items 4-6 are active
    2, 1-6, 6,5,4,3,2,1
    
    Table 4.1 Unexpected Responses
    +-----------------------+
    |3.71.1|3.71.2|         |
    | Wrong| Right|         |
    | Cat  | Cat  | N F N F |
    |------+------+---------|
    |  2   |  4   | 1 1 4 4 | <- Wrong starts at datapoint 2. Right starts at datapoint 4.
    |  3   |  5   | 1 1 5 5 |
    |  4   |  6   | 1 1 6 6 |
    |  5   |  3   | 2 2 4 4 |
    |  4   |  2   | 2 2 5 5 |
    |  3   |  1   | 2 2 6 6 |
    +-----------------------+
  7. Minor enhancement: Replication character= allows change of data replication character from R to user-selected character, e.g., # www.winsteps.com/facetman/replication.htm
  8. Minor enhancement: FacetsPasswordInstall.exe amended to support silent (passive) installations www.winsteps.com/facetman/silent.htm
    Facets 3.71.1 5-1-2013. download is shown as Facets371.exe
  1. Bug fix: for undefined elements in an element range in the data. Example: here is a specification and data file:
    Title = "Bug in Facets 3.71.0"
    Facets = 1
    Models=?,R6
    Labels=
    1, Facet
    1-2 ; deliberately omit elements 3 and 4
    *
    Data=
    1-4,1,2,3,4  ; observations 3 and 4 are for undefined elements, so should be ignored
    4,1          ; ignored
    1,0          ; valid
    1-2,0,0      ; valid
    
    ; On analysis screen, these messages display in 3.71.0, but should not:
    ; Check (2)? Invalid datum location: 2,2 in line 9. Datum "2" is too big or not a positive integer, treated as missing.
    ; Check (2)? Invalid datum location: 2,3 in line 9. Datum "3" is too big or not a positive integer, treated as missing.
    
    ; Table 7.1.1  Facet Measurement Report.
    ;    Correct in 3.71.1             Bug in 3.71.0
    ; +---------------------------++-----------------
    ; |  Score   Count  | N Facet ||  Score   Count
    ; |-----------------+---------||-----------------
    ; |     1       3   | 1 1     ||     1       3
    ; |     2       2   | 2 2     ||     9       4  - includes observations "3" and "4" which should be ignored
    Facets 3.71.0 4-23-2013
  1. Enhancement: Labels=: observations for one element can be merged with elements for another element number: 1=Element,,,,4 ; observations for element 1 are assigned to element 4
  2. Enhancement: Center=: option to include elements with extreme scores in centering computation for a facet: Center=1Z ; facet 1 is centered, the mean measure of its elements is zero, including extreme scores
  3. Enhancement: Table 7: Reliabilities with and without extreme scores
  4. Enhancement: Inter-rater=: the facets used to match for inter-rater agreement can be specified, Interater=3,4,6
  5. Minor enhancement: Graphs window: make probability-graph x-axes symmetric, if reasonable
  6. Minor Enhancement: Scorefile=. Columnheading "Fair.Avge" now "FairMAvge" or "FairZavge"
  7. Minor Enhancement: Scorefile= and Omitunobserved=No: Report all elements defined in Labels=, including elements not active in this analysis
  8. Minor Enhancement: Output Files menu: Subset-group-anchor file: improved allocation of elements to anchoring groups
  9. Minor Enhancement: Output Files menu: Winsteps-formatted file: option for no data (useful if only anchor values are wanted)
  10. Minor Enhancement: SE=Real allowed, as well as Standard=Enlarged
  11. Minor Enhancement: Table 6 and Omitunobserved=No: anchored elements without observations are shown.
  12. Minor Enhancement: Table 7 and Omitunobserved=No: anchored elements without observations are shown.
  13. Minor enhancement: Table 7: columns spaced to ease importing table into Excel (Data, Text-to-columns)
  14. Minor enhancement: Table 8: column of Total counts of each category,
  15. Bug fix: Analysis window: progress dots (...) were sometimes excessive
  16. Bug fix: Bias analysis: improved checking for memory overload (leading to crashes) with too many bias terms
  17. Bug fix: Delements=: "Subscript out of range" when element references in the data are to element labels.
  18. Bug fix: Dvalues=: incorrect operation with multiple Dvalues= specifications and an element range in one facet
  19. Bug fix: Error messages: incorrect line numbers in error messages with included files: %include
  20. Bug fix: Estimation menu: internal timer functions while the Estimation menu is active
  21. Bug fix: Keepzero= or Null=: report error (instead of crashing) when Keepzero= or Null= value out of range: -1 to 2147483647
  22. Bug fix: Labels=: improved checking for memory overload (leading to crashes) with too many element labels
  23. Bug fix: Output file and Specification file: improved detection if output file attempts to overwrite the specification file
  24. Bug fix: Output Files menu: Scorefile=: corrected selection of output files
  25. Bug fix: Output Files menu: Scorefile=: prevent automatic deletion of Scorefile= permanent files
  26. Bug fix: Subset detection: "Subsets O.K." incorrectly reported in Analysis window for some data designs.
  27. Bug fix: Table 6: sort problem in rulers can cause a crash on "top" or "bottom"
  28. Bug fix: Table 7: corrected point-correlations and inter-rater agreements when element-weighting is used in Labels=. (Model-weighting and "R" replication-weighting are correct).
  29. Bug fix: Table 7: fixed-effects chi-square value reported if exceeds 1,000,000 instead of "??.?"
  30. Security enhancement: Address Space Layout Randomisation (ASLR) and Data Execution Prevention (DEP)
  31. Security enhancement: Known publisher using COMODO Code Signing
    Facets 3.70.1 7-5-2012 - the download is labeled 3700, not 3701
  1. Bug fix: incomplete anchor output files when original specification file included; "Data = filename"
  2. Bug fix: incorrect computation of Total Score and Total Count in rare, extreme situations
  3. Bug fix: if last observation is missing with tabbed data, it is reported as "Error F30: Not enough responses for the range: deficit: 1"
  4. Bug fix: when an element is unspecified, sometimes the wrong element is reported as the unspecified one
    Facets 3.70.0 6-26-2012

    Major Enhancements:

  1. Enhancement: Data file: %filename includes files containing additional data
  2. Enhancement: Files menu: most-recently-used folders speed selection of specification files
  3. Enhancement: Specifications: Delements= gives better control over whether element identifiers in the data are element numbers (=N) or element laberls (=L) or both (=LN or =NL)
  4. Enhancement: Specifications: %filename includes files containing additional specifications or data
  5. Enhancement: Specifications: Rating Scale=: recode a range to a category, such as 4-20 to category 2, and 4.0-4.9 to category 4.
  6. Enhancement: Specifications: User-friendly rescaling of measures simplified with Uscale= and Udecimals=

    Tweaks:

  7. Tweak: Analysis window: "Directory" changed to "Folder"
  8. Tweak: Estimation menu: Newton-Raphson: clicking on OK immediately resumes estimation
  9. Tweak: Estimation: increased precision of computations can change the number of iterations to reach convergence
  10. Tweak: Estimation: anchor values skipped when checking convergence
  11. Tweak: Residual file: changed heading from "Logit" to "Measure" to allow for user-scaling (Umean=)
  12. Tweak: Residual file: measures displayed with user-scaling applied (Umean=)
  13. Tweak: Score file - decimal places for measure, S.E. and displacement set by Udecimals=
  14. Tweak: Specifications: Arrange=(nothing) suppresses output of Tables 7 and 14
  15. Tweak: Specifications: multiple data files allowed: Data = filename + filename + ... (or use included files: %filename)
  16. Tweak: Table 13: "Observed Average" score reported with two decimal places
  17. Tweak: Table 7: "Observed Average" score reported with two decimal places
  18. Tweak: Table 8: report "Used" as integers if no decimal weights
  19. Tweak: Table 8: show dichotomous anchor values (used for pivot anchoring)

    Bug fixes

  20. Bug fix: Anchor file: eliminate stray "-1" in Rating Scale= definition
  21. Bug fix: Anchor file: includes Dvalues= specification
  22. Bug fix: Anchor file: Labels=, include group-numbers, if any
  23. Bug fix: Anchor file: rating scale thresholds output as starting values when no anchoring specified
  24. Bug fix: Data file: prevent overflow if there are more than 32676 element labels in Labels= to match with element identifiers in the data
  25. Bug fix: Estimation: no "Stop" message when estimates go out of range
  26. Bug fix: Estimation: prevent program hang due to internal timer conflicts
  27. Bug fix: Input and Output Files: correct processing of files in folders with suffixes in their folder names, e.g., c:\facets.folder\examples\exam0.txt
  28. Bug fix: Specifications: Labels=: prevent crash due to out-of-range facet number (bigger than Facets=)
  29. Bug fix: Specifications: prevent crash when matching element identifiers in Data= with elements in Labels=
  30. Bug fix: Subset detection: prevent when there are unassigned datapoints but all assigned datapoints are in one subset.
  31. Bug fix: Table 2: all invalid data values displayed
  32. Bug fix: Table 2: more accurate count of blank data lines.
  33. Bug fix: Table 7: omit Groups= table when not in Arrange=
  34. Bug fix: Table 7: Reliability computation. Corrected to always report 0.0 when the "true" variance is 0.0
  35. Bug fix: Table 8: more precise computation of "Expected Average Measure" and "Outfit Mean-Square" statistics for categories
  36. Bug fix: Tables 13, 14 and Excel Plots: DIF and DPF sizes in user-scaled units (UMEAN=)
  37. Bug fix: Tables 13, 14 and Excel Plots: correction to plotted points to match Tables 13 and 14
  38. Bug fix: Temporary work folder: robust against changes in Windows settings
  39. Bug fix: Winsteps control file output: correct datacodes in CODES=
    Facets 3.69.0 - 5-1-2011 - limited release
    Facets 3.68.0 - 6-5-2011, 3.68.1 - 7-27-2011
  1. Bug fix (late): Help "search" tab does not work
  2. Enhancement: (3.68.1): include element measures in residual file
  3. Bug fix: (3.68.1): corrected the failure to close all text windows when "Yes" clicked on exit
  4. Bug fix: (3.68.1): corrected computation of some Fair Average values
  5. Bug fix: (3.68.1): corrected Interrater=: memory overflow if more than 32,000 observations
  6. Bug fix: (3.68.1): corrected SPSS formatter: index out of range
  7. Bug fix: (3.68.1): do not report missing elements for ignored "X" facet
  8. Enhancement: allow data files bigger than 2GB (tested to 250,000,000 observations)
  9. Enhancement: increased precision of estimation to support bigger data files.
  10. Enhancement: faster processing when there are unspecified elements
  11. Enhancement: faster processing when element identifiers are element labels
  12. Enhancement: more flexibility for element identifiers that are part of element labels: Delements=
  13. Enhancement: weighting of elements supported. In Labels=
    element number = element label, anchor value, group number, weight
  14. Enhancement: T4maximum = 0 suppresses Table 4, list of unexpected observations
  15. Enhancement: accomodate change to R-statistics version 2.12 folders
  16. Enhancement: Table 6 "rulers": SL displays full rating-scale category label from Rating-scale=
  17. Bug fix: corrected: Table 2, Labels=Build, now only reports unspecified elements in modeled facets
  18. Bug fix: corrected: program failure due to Entered= inconsistency
  19. Bug fix: corrected: program failure due to overflow in discrimination-estimation routine
  20. Bug fix: corrected: program failure due to overflow in estimate-out-of-range routine
  21. Bug fix: corrected: Table 8 rating-scale report: very large Observed-Expected residuals not displayed
    Facets 3.67.1 - 11-1-2010
  1. Enhancement: Table 7: Group summary report
  2. Enhancement: Group labeling: glabels=
  3. Enhancement: Residual file: columns for response status, and logit displacement (equivalent to score residual)
  4. Bug fix: Dummy "D" anchoring sometimes ignored
  5. Bug fix: Unhelpful "invalid group number" error message
  6. Bug fix: Table 7: Missing edit word for unusual status messages
  7. Bug fix: Table 7 with paired comparisons ?,-?: shows correct total score and observed average.
  8. Bug fix: Incorrect "Observed-Expected Average" in Table 14, 10th column
  9. Bug fix: Calculator causes crash under Windows 7
    Facets 3.67.0 - 6-20-2010
  1. Enhancement: Table 7: show group-number column in measure reports.
  2. Enhancement: Table 7: Group summary report
  3. Enhancement: Labels= G or X for group anchoring: G include measures with extreme scores; X exclude measures with extreme scores
  4. Enhancement: remove redundant headings before Table 7 total lines
  5. Enhancement: "Output Files menu", "Specification Settings" shows current values of specifications
  6. Enhancement: Table 7 - if only one element, then only one arrangement shown
  7. Enhancement: Labels= specifies that group number of an element is in the element label
  8. Enhancement: Dvalues= the element number of one facet is the group number of the element in another facet
  9. Enhancement: Help menu - link to report bugs
  10. Enhancement: Anchorfile= Anchor files - improved formatting
  11. Bug fix: correct reporting of Data=file+file+....
  12. Bug fix: correct handling of duplicate Data= when there is Data= followed by data.
  13. Bug fix: Labels= Dummy facet. Specified anchor values are now over-ridden by the Umean= value
  14. Bug fix: Labels= Multiple definitions of an element are now correctly combined.
    Facets 3.66.3 - 4-11-2010
  1. Bug fix: overflow with huge element numbers, bigger than 2147483647
  2. Bug fix: SPSS output .sav file formatting failure for point-biserial correlations
    Facets 3.66.2 - 3-1-2010
  1. Bug fix: computation of "Approximate degrees of freedom"
  2. Bug fix: better matching of element labels containing underscores: "_"
  3. Bug fix: make sure that a temporary work folder is available (permissions problem)
    Facets 3.66.1 - 11-1-2009
  1. Bug fix: estimation malfunction with message: "Warning (14)! Estimation diverged"
    Facets 3.66.0 - 10-21-2009
  1. Complete details and pictures of 20 enhancements and bug-fixes at Facets 3.66.0 PDF
  2. Facets window launches normal size (not maximized)
  3. Welch's corrected t-test for bias/interaction significance
  4. R-statistics-format data files accepted
  5. Bug fix: Model=?,?,?,R malfunctioned as Model =,,,R on some (Asian) Unicode computers. Model=$,$,$,R now allowed.
  6. Minor changes and bug-fixes to improve appearance, operation and documentation
    Facets 3.65.1 - 4-28-2009
  1. Usort= now sorts based on rounded printed values (not exact values) in Table 4
  2. "Analyzed in time of ..." always shown in Facets Analysis window
  3. Corrected: screen lines print in wrong colors under some conditions
  4. Corrected: very small model variances for observations caused "divide by zero" errors
  5. Corrected: "return without gosub" error if no point-biserials computable
  6. Corrected: "degrees of freedom" in Table 5 incorrectly reported number of free parameters
  7. Corrected: "divide by zero" error if iteration interrupted
  8. Corrected: plotting corrected for Excel 2007 with big DIF plots
  9. Corrected: SPSS open file failure under some conditions
  10. Corrected: don't overwrite Windows systems files with later versions (can crash Windows 2000)
  11. Corrected: don't write output file if Facets is cancelled in the Output file dialog
    Facets 3.65.0 - 4-13-2009
  1. Complete details and pictures of 35 enhancements and bug-fixes at Facets 3.65.0 PDF
  2. Element labels (as well as element numbers) allowed in data file
  3. Element label list built from element labels in data file
  4. Reliability "Strata" reported = (4*Separation + 1)/3
  5. % Variance explained by Rasch measures reported
  6. Minor changes and bug-fixes to improve appearance, operation and documentation
    Microsoft 12-2008
  1. Security update for modules that are used in Winsteps, Facets, Ministep, Minifac, Bond&FoxSteps
  2. This is in addition to the Windows Update.
  3. Please be sure that your anti-virus software is active and up-to-date.
  4. Please perform the cumulative security update (10MB) from Microsoft: https://support.microsoft.com/kb/957924/
    Facets 3.64.0 - 6-18-2008
  1. Complete details and pictures of 27 enhancements and bug-fixes at Facets 3.64.0 PDF
  2. Point-measure correlation and its expectation
  3. Compatible with Excel 2007 .xlsx data files
  4. Totalscore=Yes is now the default
  5. Table 13 DIF now shown with d.f. and probability
  6. "Partial Credit" items can be graphed with relative or absolute measures
  7. Minor changes to improve appearance, operation and documentation
    Facets 3.63.0 - 1-2-2008
  1. Complete details and pictures at Facets 3.63.0 PDF
  2. Faster convergence (around two iterations through the data less)
  3. Direct data input from SAS, SPSS, STATA as well as Excel
  4. ASCII=Y or N or W: to output prettier tables with line-drawing characters
  5. Windows Vista-compatible: installation and Help display
  6. Table 5 summary statistics: report with two decimals (one decimal previously)
  7. Table 6 bug fix: on column selection for the "rulers"
  8. Explicit "D" code in Labels= for dummy facets
  9. T3onscreen=, Tables=, T8NBC= for more control over production and display of Output Tables
  10. Residual output file: field selection
  11. Anchor file: with all current specification settings
  12. Graphing: option to display Legends
  13. Graphing bug: empirical category and option frequencies displayed correctly
  14. Minor changes to improve appearance and operation
    Facets 3.62.0 - 6-12-2007
  1. Rating scale= ,,, recode, recount ; has a bug in Facets 3.62
  2. Complete details and pictures at Facets 3.62.0 PDF
  3. Excel Bias/Interaction Plots:Absolute measures (baseline + bias/interaction), Relative bias measures (bias only relative to overall), Relative bias t-value (significance relative to overall), Pairwise measure bias differences and significances, Average observed rating
  4. Output score files to SPSS and to Excel
  5. Output residual files to Excel and SPSS
  6. Faster analysis (disk input-output and screen writes)
  7. Control buttons in Facets main Window:"Pause/Resume" and "Finish iterating" buttons
  8. Bigger datasets: Facets has successfully analyzed datasets with 500,000 elements and 100,000,000 data points
  9. Barcharts=: no, most important, all
  10. Labels=: Explicit dummy facet code, "D"Anchors all the starting values at 0
  11. Models= ?,?,?,R8KModels specification: Addition of "K" to indicate that intermediate unobserved categories are to be kept in the category hierarchy
  12. Tables=: Suppress Table Output from the main analysis - use the pull-down menus instead
  13. T4max=: Specify maximum number of residuals to be reported in Table 4.
  14. Vertical=SL displays the category labels in Table 6Vertical= 1C displays a count of the element numbers in Table 6
  15. Yardstick=: location of extreme elements (at end or by measure), end is the default
  16. Edit initial settings:Option for computation of empirical curves. Computation can take a long time if dataset is large.Option for displaying iteration bars. Iterations can slow down some Unicode versions of Windows.
  17. Short-cut keys: revised model-checking short-cut keys to remove conflicts with Windows defaults
  18. Short-cut keys: All short-cut keys documented
  19. Font menu - to simplify changing display fonts in Facets Window
  20. Edit Template from Edit menu streamlined
  21. Cancel button merely exits from current dialog box. Facets remains active.
  22. Files menu: More options on program launch
  23. Iteration progress bar: shown in color.Multiple ==== are written in one operation to prevent writing to the screen slowing down the computation.
  24. Facets Window: Red for warning messages
  25. Facets Window: only most unconverged elements shown to speed up screen display output.Largest score residualLargest score residual percentLargest logit change
  26. Bias/Interaction dialog box: Better control over bias/interaction Tables and Excel plots from Output Tables menu
  27. Modify specifications dialog box: Change facet positive and negative orientation (Positive=, Negative=)Change standard error reported, model or real (SE=)Bug fix: Umean= and Uscale= malfunction.Now accessed from all Table dialog boxes
  28. Table 14: more than 1000 pairwise comparisons. Please request explicitly from the Output Tables menu due to memory and speed constraints.
  29. Table 2: Unobserved models not reported
  30. Table 2: Rating scales listed in order
  31. Table 4. Standardized Residual: 1 decimal place
  32. Table 6:Vertical=SL displays the category labelsVertical= 1C displays a count of the element numbers
  33. Table 6: Non-extreme categories shown next to extreme categories
  34. Table 6: Rating scale identification below rulers
  35. Table 6: Fewer overflow lines
  36. Table 6.0.0: Improved subset reporting
  37. Table 6.1: Rescaling of numerical bar charts for consistency across facets
  38. Table 13: Bias/interaction direction reported explicitly
  39. Table 13: Facets names in bias/interaction report
  40. Table 14: Heading shortened:
  41. Graph file: headings and range
  42. Typographical error "xstop" to "stop"
  43. Bias sign inconsistencies:always: positive / negative resolved:Bias= only for Tables 12 and 13.
  44. PROX estimation: Don't estimate the rating-scale structure during PROX: it proved detrimental
  45. Data file message: Corrected instructional message:Data file not found - please re-enter
  46. Stop statement: Unexpected, very rare, program stop removed. Now Facets always exits gracefully.
  47. Undefined facet: Table 7 on the Output Tables menu no longer crashes if there is an undefined facet.
  48. Real standard error: Documentation corrected for the Real S.E.
  49. Subset detection: further unusual designs correctly diagnosed
    Facets 3.61.1 - 7-4-2006 (roughly matches Bond&FoxFacets, Bond & Fox, 2edn.)
  1. Bug fix: input from Excel 2002 & 2003 spreadsheets (winexcel.exe interface routine)
    Facets 3.61.0 - 5-10-2006
  1. Enhanced: Total score (includes extremes) option: Totalscore=Yes
  2. Enhanced: reliabilites reported based on both model and real standard errors
  3. Enhanced: Excel plots - better chart names. more robust version: please report Excel problems - but first see Excel problems.
  4. Enhanced: inter-rater agreement: omit self-agreements when one rater rates same situation several times
  5. Precaution: process hex code "A0" as blank
  6. Precaution: set option selection windows topmost temporarily
  7. Precaution: detect invalid model weights: reports Error 60
  8. Precaution: detect non-numeric element labels in data: reports Error 23
  9. Precaution: Dvalues=: imputes "*" at end of specification list, if needed
  10. Precaution: Dvalues=: imputes facet count, if Dvalues= specified before Facets=
  11. Help: How to construct score-to-measure tables
  12. Help: Error codes updated
Winsteps+Facets small CD-ROM
Winsteps+Facets small CD-ROM

Note: Undocumented feature in many earlier versions:
You can control the size of changes in the measure estimates at the end of each iteration:
Press + during iteration to increase size of changes.
Press - during iteration to decrease size of changes.
With Windows version, use Estimation pull-down menu.


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Facets Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation download
Winsteps Rasch measurement software. Buy for $149. & site licenses. Freeware student/evaluation download

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Rasch Publications
Rasch Measurement Transactions (free, online) Rasch Measurement research papers (free, online) Probabilistic Models for Some Intelligence and Attainment Tests, Georg Rasch Applying the Rasch Model 3rd. Ed., Bond & Fox Best Test Design, Wright & Stone
Rating Scale Analysis, Wright & Masters Introduction to Rasch Measurement, E. Smith & R. Smith Introduction to Many-Facet Rasch Measurement, Thomas Eckes Invariant Measurement: Using Rasch Models in the Social, Behavioral, and Health Sciences, George Engelhard, Jr. Statistical Analyses for Language Testers, Rita Green
Rasch Models: Foundations, Recent Developments, and Applications, Fischer & Molenaar Journal of Applied Measurement Rasch models for measurement, David Andrich Constructing Measures, Mark Wilson Rasch Analysis in the Human Sciences, Boone, Stave, Yale
in Spanish: Análisis de Rasch para todos, Agustín Tristán Mediciones, Posicionamientos y Diagnósticos Competitivos, Juan Ramón Oreja Rodríguez
Winsteps Tutorials Facets Tutorials Rasch Discussion Groups

 

Coming Rasch-related Events
March 31, 2017, Fri. Conference: 11th UK Rasch Day, Warwick, UK, www.rasch.org.uk
April 2-3, 2017, Sun.-Mon. Conference: Validity Evidence for Measurement in Mathematics Education (V-M2Ed), San Antonio, TX, Information
April 26-30, 2017, Wed.-Sun. NCME, San Antonio, TX, www.ncme.org - April 29: Ben Wright book
April 27 - May 1, 2017, Thur.-Mon. AERA, San Antonio, TX, www.aera.net
May 26 - June 23, 2017, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
June 30 - July 29, 2017, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com
July 31 - Aug. 3, 2017, Mon.-Thurs. Joint IMEKO TC1-TC7-TC13 Symposium 2017: Measurement Science challenges in Natural and Social Sciences, Rio de Janeiro, Brazil, imeko-tc7-rio.org.br
Aug. 7-9, 2017, Mon-Wed. In-person workshop and research coloquium: Effect size of family and school indexes in writing competence using TERCE data (C. Pardo, A. Atorressi, Winsteps), Bariloche Argentina. Carlos Pardo, Universidad Catòlica de Colombia
Aug. 7-9, 2017, Mon-Wed. PROMS 2017: Pacific Rim Objective Measurement Symposium, Sabah, Borneo, Malaysia, proms.promsociety.org/2017/
Aug. 10, 2017, Thurs. In-person Winsteps Training Workshop (M. Linacre, Winsteps), Sydney, Australia. www.winsteps.com/sydneyws.htm
Aug. 11 - Sept. 8, 2017, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com
Aug. 18-21, 2017, Fri.-Mon. IACAT 2017: International Association for Computerized Adaptive Testing, Niigata, Japan, iacat.org
Sept. 15-16, 2017, Fri.-Sat. IOMC 2017: International Outcome Measurement Conference, Chicago, jampress.org/iomc2017.htm
Oct. 13 - Nov. 10, 2017, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
Jan. 5 - Feb. 2, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
Jan. 10-16, 2018, Wed.-Tues. In-person workshop: Advanced Course in Rasch Measurement Theory and the application of RUMM2030, Perth, Australia (D. Andrich), Announcement
Jan. 17-19, 2018, Wed.-Fri. Rasch Conference: Seventh International Conference on Probabilistic Models for Measurement, Matilda Bay Club, Perth, Australia, Website
May 25 - June 22, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
June 29 - July 27, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Further Topics (E. Smith, Winsteps), www.statistics.com
Aug. 10 - Sept. 7, 2018, Fri.-Fri. On-line workshop: Many-Facet Rasch Measurement (E. Smith, Facets), www.statistics.com
Oct. 12 - Nov. 9, 2018, Fri.-Fri. On-line workshop: Practical Rasch Measurement - Core Topics (E. Smith, Winsteps), www.statistics.com
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