POLY-DIMTEST

POLY-DIMTEST - Latent Unidimensionality Assessment for Polytomously Scored Data POLY-DIMTEST is a hypothesis testing procedure that assesses lack of latent unidimensionality for a polytomously scored educational or psychological test. It does so by assessing the statistical significance of the possible dimensional distinctiveness between two user-specified subtests: the Assessment Subtest (AT) and the Partitioning Subtest (PT). POLY-DIMTEST is a modified version of DIMTEST that can be used to assess lack of latent unidimensionality for polytomously scored item response data. As with DIMTEST, it can be used in a confirmatory mode, or in an exploratory mode provided the user provides a procedure to select an AT item set for analysis. In confirmatory mode, POLY-DIMTEST assesses the user-selected AT that a priori has been judged to be possibly dimensionally distinct from the PT; in exploratory mode, using cross-validation, POLY-DIMTEST assesses unidimensionality by using a statistically selected AT item set that is potentially maximally dimensionally distinct from the rest of the test (i.e., the PT). POLY-DIMTEST is completely nonparametric and requires neither parametric IRT modeling nor estimation of item response functions. Specifications POLY-DIMTEST can analyze data files containing up to 12,000 examinees and 151 items. System Requirements This software is a DOS based program, which will run in the Windows environment, unless specific exceptions are noted. If you experience difficulty opening this software, please refer to the following support page on the Microsoft website: Microsoft Support Article ID# 324767 - "Error message when you install or start an MS-DOS or 16-bit Windows-based program" If you are unable to get this software to run on your machine, or if you have questions before purchasing the program, please contact our technical support department. Order Options and Details   POLY-DIMTEST - Academic (DOS) 150.00  Multiple License Discount Schedule: No. of Licenses:  Price:    1  150.00   2  142.50   3  135.00   4  120.00   5 - 9  105.00   10+  82.50 Quantity: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Add to cart POLY-DIMTEST - Non-Academic (DOS) 300.00  Multiple License Discount Schedule: No. of Licenses:  Price:    1  300.00   2  285.00   3  270.00   4  240.00   5 - 9  210.00   10+  165.00 Quantity: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Add to cart POLY-DIMTEST - Student (DOS) 80.00  Quantity: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Add to cart Dichotomous/Polytomous Software Package This package contains: DIMPACK (Windows) + POLY-DIMTEST (DOS) + HCA/CCPROX (DOS) Dichotomous/Polytomous Software Package - Academic 537.50  Multiple License Discount Schedule: No. of Licenses:  Price:    1  537.50   2  510.63   3  483.75   4  430.00   5 - 9  376.25   10+  295.63 Quantity: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Add to cart Dichotomous/Polytomous Software Package - Non-Academic 1075.00  Multiple License Discount Schedule: No. of Licenses:  Price:    1  1075.00   2  1021.25   3  967.50   4  860.00   5 - 9  752.50   10+  591.25 Quantity: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Add to cart Dichotomous/Polytomous Software Package - Student 275.00  Quantity: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Add to cart

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