الخصائص القياسية لاختبارات ( فيليب كارتر)‎ للرشاقة العقلية المقدرة

Abstract EN

The aim of the current research is to extract the standard characteristics of Philip Carter's tests (mental agility) according to the test item response theory.

For the purpose of achieving these goals, the researcher carried out a number of scientific steps to analyze Philip Carter’s tests (mental agility) according to the theory of response to the test paragraph.

A committee of experts in English and psychology who are proficient in the English language in order to verify the translation.

For the purpose of verifying the validity of the paragraphs logically in order to extract the apparent validity of the tests that included (4) tests of mental agility, namely (speed test A, speed test B, spatial test, mental arithmetic), where the tests were presented to (12) experts in psychology and measurement.

The notes were taken, some of which were modified and others reformulated, and no paragraph was excluded from the tests, because it obtained the percentage of agreement required to accept the paragraph by (83%), and thus the apparent validity of the tests was achieved.

For the purpose of verifying the clarity of the instructions for the tests and paragraphs, the researcher applied the tests to a sample of (50) male and female students randomly from the students of Al-Mustansiriya University/ College of Basic Education for Human Specialization (History Department) and the University of Technology for Scientific Specialization (Electromechanical Engineering), and the researcher asked the The students read the instructions for the tests, and inquired about the paragraphs of the tests in case of lack of clarity, as well as asking them to mention the difficulties they faced while answering.

Where the average response time for each test is (speed test A (40,60), speed test B (52,22), spatial test (90,17), mental arithmetic (70,46).

For the purpose of statistical analysis of paragraphs of Philip Carter's tests (mental agility) to extract standard characteristics.

The tests were applied to a sample of (1000) male and female students who were selected by "cluster sampling method".

The statistical analysis was according to the paragraph response theory, where the researcher adopted Birnbaum's three-teacher model, which is the third model of paragraph response theory.

It was used to analyze the paragraphs of Philip Carter's tests (for mental agility) according to the Bilog-m3 program.

Scientific: For the purpose of verifying the one-dimensional assumption, the researcher analyzed Philip Carter's tests (for mental agility) according to a factor analysis method in order to verify the factorial structure of the test.

Using the method of principal components analysis (Method Principal Componet Analysis), the direct analysis produced one factor before the rotation, and after performing the orthogonal rotation by the Varimax method (Varimax) of Kaiser, one factor was obtained with a potential root more than one integer according to Guttman's Lower bounds method.

Where the researcher used indicators of the appropriateness of the paragraphs of the model used, where the statistics of the values of the chi-square were used, which is the method used in the program (BILOG - MG3), which is the program that the researcher used in analyzing his data, and according to the results of these statistical indicators, the appropriateness of the paragraphs of the model used was judged.

As for the stability of the tests, it was calculated through two indicators: the variance ratio to estimate the stability of the test and the test information function for the purpose of estimating the stability of ability.

Based on the results of the current research according to the paragraph response theory, the researcher concluded the following: 1- Paragraph response theory can be used to develop specific tests in the Three-Teacher Model (PLM3) It can also be used in the development of tests of the current research by matching the data of the Philip Carter Mental Agility Tests to the assumptions of the ThreeTeacher Model (PLM3).

As well as achieving high independence in measurement.

2- There is great accuracy in the procedures applied in preparing Philip Carter's tests of mental agility according to the paragraph response theory, which resulted in a decrease in the value of the standard error and an increase in the stability coefficients.

In light of this, the researcher reached a number of recommendations and suggestions.

In light of this, the researcher reached a number of recommendations and suggestions.