Applied Measurement with jMetrik by J. Patrick Meyer

By J. Patrick Meyer

jMetrik is a working laptop or computer application for imposing classical and smooth psychometric equipment. it's designed to facilitate paintings in a creation surroundings and to make complicated psychometric systems available to each dimension practitioner. Applied size with jMetrik reviews psychometric thought and describes easy methods to use jMetrik to behavior a complete psychometric research. every one bankruptcy specializes in an issue in size, describes the stairs for utilizing jMetrik, and gives a number of examples of engaging in an research at the subject. thoughts and counsel for perform is supplied during the book.

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There is already a variable called sumscore in the table, so we will name the new variable testscore. Following the steps outlined previously, we will select all of the test items to create the sum score. A new column appears in the table after the analysis is complete. If you view the data, you will notice that sumscore and testscore have identical values. That result confirms that we applied the item scoring correctly. 01. 4 illustrates the distribution of scores in a histogram. To compute percentile ranks, repeat the steps for starting the Test Scaling dialog and selecting all of the test items.

The – sign tells jMetrik to count backwards. 4. e. 1, 2, 3, 4). e. 0, 1, 2, 3). Item6 and item7 are reverse-scored items. e. 4, 3, 2, 1). e. 3, 2, 1, 0). These four examples show various ways polytomous items can be quickly scored in the Basic Item Scoring dialog. Not Items To tell jMetrik that a variable is not an item, do not provide a value for the answer key or number of response options. You can remove scoring for an item in the same way. If you would like to clear the scoring information and convert an item to a “Not Item,” then delete the answer key entry and value for the number of response options.

There is no need to repeat the scoring process for tables created in this manner. Exporting Data Exporting data is just the opposite of importing it. Data stored in a table in jMetrik are converted to a delimited plain text file and saved to your hard drive. Two of the options for an export are the same as the import options, but two others are new. To start the Export Data dialog, click Manage  Export Data. Along the right side of the dialog, you will see a panel for the Delimiter option and a panel for the Variable Names option.

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