Figure 1 1 Within a year or so, Lertap may also work with Calc, the OpenOffice equivalent to Excel. The following screen snapshots exemplify these worksheets. The data records reside in another worksheet, one called Data. The control lines go into an Excel worksheet called CCs. Lertap separates control lines from data records. Lertap s input gets recorded in an Excel workbook, one having more than one worksheet. It requires a version of Microsoft Excel in order to run 1. On Windows computers text files can be created with programs such as Notepad and Wordpad. Lertap 5 input files ITEMAN s input file is a text file, saved with an extension of DAT. A study of the second CCs line reveals that the first two scales are cognitive, while the third is affective (or multipoint in common ITEMAN parlance). The fourth CCs line indicates that there are three scales (in Lertap scales are usually referred to as subtests ). In this case, the data records begin with 10 ID characters, followed by responsesĢ for 30 items. The four CCs lines are followed by data records.

The first four lines are what I call control cards, abbreviated CCs. ITEMAN input files 30 X Y items and 10-character ids keys for the three scales numbers of alternatives scale assignment codes EX D EX D EX W EX U X EX S The lines above will be recognised by ITEMAN users as a typical input file. The ins and outs of ITEMAN I want to bedazzle you with Lertap, but the beginning of the dazzle will feature ITEMAN. It is now quite an easy matter to go from ITEMAN to Lertap. Experienced ITEMAN users might be reluctant to go through the steps needed in order to master Lertap. But Lertap s interface is vastly different to ITEMAN s. Lertap has options which produce graphs, charts, and colourful tables of results its quintile plots reflect aspects of item quality in a visual manner, sometimes making it easier to detect poorly functioning items. However, Lertap has several features not found in ITEMAN among these, graphics stand out as a major difference. At a basic level, item and test statistics, ITEMAN and Lertap 5 produce similar results. Some see its interface as dated, but its use remains widespread. It has had decades to cement a reputation as a solid, reliable workhorse. For many years it was the system to use for classical item and test analysis. For comments on this new version, and Lertap 5, please click here ITEMAN is a true software veteran with an origin dating back to the 1960s. 1 ITEMAN 3 and Lertap 5 Larry Nelson Curtin University of Technology Document date: 28 January 2012 website: NOTE: Iteman has undergone a major update and, as a result, this document has value only for historical purposes.

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