The Effect of Sample Size on the Item Differential Functioning in the Context of Item Response Theory

Ziad Abdullah; زياد العبدالله

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Publication Date

Mon Apr 04 2022

Journal Name

Journal Of Educational And Psychological Researches

Volume

19

Issue Number

72

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The Effect of Sample Size on the Item Differential Functioning in the Context of Item Response Theory

Item Differential Functioning (IDF)

sample size

polytomous item response theory models

Graded Response Model (GRM)

Ziad Abdullah

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The current study examined the effect of different sample sizes to detect the Item differential functioning (DIF). The study has used three different sizes of the samples (300, 500, 1000), as well as to test a component of twenty polytomous items, where each item has five categories. They were used Graded Response Model as a single polytomous item response theory model to estimate items and individuals’ parameters. The study has used the Mantel-Haenszel (MH) way to detect (DIF) through each case for the different samples. The results of the study showed the inverse relationship between the sample size and the number of items, which showed a differential performer.

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Publication Date

Mon Oct 06 2025

Journal Name

Al–bahith Al–a'alami

The Problemic of the ambiguous relationship between the media and terrorism, and the problems arising from… An exploratory study of a sample of journalists, writers and researchers in Baghdad

The Problemic - Ambiguous Relationship - Problem - Press Coverage

Akram

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This study examined the problematic of the ambiguous relationship between the media and terrorism and the problems that result from press coverage of terroristic incidents. The paper sought to show the classification and confrontation of such incidents had been established from the point of view of a sample of media professionals, researchers and writers who are frequenters of Al-Mutanabi Street in Baghdad. The media outlets that carry this coverage would not give up their media mission as well as the terrorists would not be given an opportunity to take advantage of this coverage in achieving their goals and objectives. Furthermore, the terrorist organizations would have no chance to exploit these means to deliver their terroristic messa

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Publication Date

Mon May 19 2025

Journal Name

Retos

The effect of the cube model on visual-spatial intelligence and learning the skill of spiking in volleyball for female students

Alyaa

Tahseen

Badra

Maher

Nahidah Abd

Suhad Qassem

Nidaa

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Objective: To identify the effect of the cube model on visual-spatial intelligence and learning the skill of spikinging in volleyball for female students, The researchers used the experimental method by designing two equivalent groups with pre- and post-measurements. Research methodology: The main research sample of (30) female students was selected from the research community represented by second-stage students in the College of Physical Education and Sports Sciences - University of Baghdad for the academic year (2024-2025). The sample was divided equally into two control and experimental groups. The researchers conducted the sample homogenization process and the equivalence process between the two groups in the variables of visua

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Publication Date

Mon Oct 06 2025

Journal Name

Opción: Revista De Ciencias Humanas Y Sociales, Issn 1012-1587, Nº. Extra 21, 2019, Págs. 907-927

The Effect Of The Perkins’ And Blythe’s Model On Mathematical Communication Among Students Of The 5Th Bio Scientific Grade In Mathematics

Muayad

Lina Fouad

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Autorías: Muayad Kadhim Raheem, Lina Fouad Jawad. Localización: Opción: Revista de Ciencias Humanas y Sociales. Nº. 21, 2019. Artículo de Revista en Dialnet.

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Publication Date

Fri Feb 01 2019

Journal Name

Journal Of The College Of Education For Women

The Video effect on Youths Value

أ.م.د.سميرة موسى

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The Video effect on Youths Value

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Publication Date

Mon Oct 06 2025

Journal Name

Journal Of Studies And Researches Of Sport Education

The effect of using the educational bag on the level of learning some offensive skills with the epee weapon

The effect of using the educational bag on the level of learning some offensive skills with the epee weaponDr. Lamia Hassan Al-Diwan

D. Fatima Abdel-Maliki

Dr. Kholoud Laith Abdel Karim2005 Technical and technological development has been increasing day after day and has included all areas of life

including the educational process

which has benefited from technologies such as (computer

video

and pictorial models) in introducing them as tools to aid the learning process. Educational packages have proven their effectiveness in education as they prepare learners with different areas of experience. Sensory audio-visual

through which the learner acquires different educational experiences through interaction

practice

participation

and communication with the data of the surrounding environment through the diversity of knowledge sources that suit his inclinations and needs. The research aimed to prepare an educational bag to teach some offensive skills in the epee weapon. And to find out the effect of using the proposed educational bag on the level of learning some offensive skills in the epee weapon. We hypothesized that the proposed educational package has a positive impact on the level of learning some offensive skills with the epee weapon. There were statistically significant differences in testing the level of learning some offensive skills with the epee weapon between the post-tests of the experimental and control groups

and in favor of the experimental group. The researchers used the experimental method to suit the nature of solving the research problem

and the research sample was chosen intentionally from the girls’ fencing club players (beginners) in the governorate. Basra for the year 2005. The number of players was (16)

which represented the entire study population. The experiment was conducted in the sports hall of the South Oil Sports Club in Basra. We concluded that the educational package has a positive impact on the level of learning some offensive skills in the epee weapon. There were statistically significant differences in the learning level test for some offensive skills in the epee weapon between the experimental group and the control group in the post-tests and in favor of the experimental group. We recommended the necessity of using the proposed educational curriculum to learn some offensive skills in the epee weapon in fencing lessons or in sports clubs. Adopting modern techniques in training

teaching or teaching fencing skills and searching for new methods. Conducting similar studies on other skills or different samples.Keywords: educational bag

offensive skills with an epee weapon

fencing game. Teaching methods. Basra Girl Sports ClubLamya Hassan Aldewan [email protected] of Basra - College of Education and Sports Scienceshttps://orcid.org/0000-0003-0377-6915 Keywords educational bag

offensive skills with an epee weapon

fencing game. Teaching methods. Basra Girl Sports Club

‏Lamyaa

Fatima

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Publication Date

Sat Jul 01 2023

Journal Name

Journal Of Accounting And Financial Studies ( Jafs )

The impact of crisis management in achieving banking liquidity: applied research in a sample of Iraqi private banks

crisis management

banking liquidity

Doaa Saad Jasim

Prof.Dr.Fayhaa Abdullah Yaqoop

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Crises affect the economic growth of the country in general and the banking sector in particular. Given the importance of this sector, it is necessary to evaluate the performance of banks from time to time and monitor the liquidity of each bank and how to organize its management to overcome any crisis or emergency situation that may befall it. The research seeks to diagnose the level of impact of crisis management. In the liquidity of Iraqi private banks, using liquidity indicators, as the research community represents the banks listed in the Iraq Stock Exchange As for the research sample, it is represented by (10) pri

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Publication Date

Wed Jan 23 2019

Journal Name

Journal Of Accounting And Financial Studies ( Jafs )

Internal banking supervision requirements and their impact on the development of electronic accounting information systems: Applied research in a sample of Iraqi private banks

بشرى مهدي

أ.م.د.ايمان شاكر

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Despite the availability of information technology banking features and benefits of the banking sector, they involve many risks and challenges and put in the face of the administrative authorities and regulatory institutions in the banking system, organizational matters and control sensitive and bear direct responsibility for conducting independent assessments of their regulatory and information and determine the degree of its durability and its ability to confront problems imposed by the technical challenges and technological .
And the success of the administrative authorities and regulatory institutions in achieving its objectives in the management of risks and threats oversight resulting from the act

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Publication Date

Tue Jan 01 2019

Journal Name

Journal Of Human Sport And Exercise - 2019 - Spring Conferences Of Sports Science

The effect of special force training on the development of biomechanical variables for running raising awareness during the performance on the jumping table

Foot scanner

Approximate rotation

Elevated force

Elevation

Video filming

info:eu-repo/semantics/article

Dr.Zina

Ahmed Sebeaatea

Hameed Ahmed Mohammed

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Publication Date

Sun Jun 30 2019

Journal Name

Journal Of The College Of Education For Women

Qualities of Life Partner from the Perspective of a Sample of University Students

qualities

life partner

university students

Kamel Hassen Katalo

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The study aims at identifying the morphological and psycho-socio-economic qualities wished to be in a life partner among a sample of Palestinian youth. The total sample was (231) and consisted of (83) male and (148) female students. Each student presented a detailed report on the qualities he/she wished to be in life partner. The study used the descriptive approach and content analysis method. The validity and stability of the analysis were calculated. The results showed eight qualities in both groups: physical, psychological, emotional, social, intellectual, familial, economic and academic. Female students were found to have more variations than male students in terms of the qualities preferable in the life partner. Male students

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Publication Date

Thu Feb 28 2019

Journal Name

Journal Of Accounting And Financial Studies ( Jafs )

The Role of Job Enrichment in Building Differentiation Strategy Service: Analytical Exploratory Study of the Views of a Sample of the General Managers and Heads of Departments and Officials of the People in the General Establishment of Civil Aviation

م.م. مها صباح

أ. م. د. إنتظار أحمد

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According to the importance of the subject of research, and the importance of the surveyed organization as a dynamic sector of the country in general , The research attempts to suggest to service organizations in general reconsidering the currently adopted mechanisms in the redesign of its functions , and in the services provided industry . The data was collected from (98) Director Mangers , head of department and head of division . The research tool is the questionnaire , which included (50) items . The results show Significant Effect & Correlation relationship between the two variables due to their dimensions . These lead to he application of job enrichment technology will increase the organization's ability to possess efficient hu

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