The Impact of A Strategy Based on The Diffusion of Innovations Theory on Developing Expressive Performance Skills Among Fifth-Grade Preparatory School Students

Abstract

The present study aims to identify the effect of a strategy based on the Diffusion of Innovations Theory on developing the expressive performance of fifth-grade preparatory female students. To achieve the objective of the study, the researcher adopted an experimental approach with partial control involving two randomly selected groups appropriate to the conditions of the current research. The researcher formulated a null hypothesis .The researcher employed the experimental method and utilized the post-test-only control group design, which is considered one of the partial control designs. The research sample, selected randomly, consisted of (60) female students distributed equally into two groups: (30) students in the experimental group and (30) students in the control group. The sample was drawn from 14 Tammuz Secondary School for Girls, affiliated with the Second Al-Rusafa Directorate of Education in Baghdad Governorate.The researcher established equivalence between the students of the two research groups in several variables, including chronological age calculated in months, the educational attainment of fathers and mothers, previous year grades in the Arabic language subject, and the pre-test of expressive performance skills.The researcher developed a test to measure expressive performance skills after presenting it to a panel of experts specializing in Arabic language curricula and teaching methods, as well as educational and psychological sciences. The validity and reliability of the test were verified.The researcher herself taught both research groups during the experiment, which lasted for one academic semester, namely the first semester of the academic year (2025–2026). The experiment commenced on Sunday, October 12, 2025, and concluded on Sunday, December 7, 2025.      The researcher analyzed the results using statistical methods represented by the Smirnov test for the normal distribution of data, Levene’s test for homogeneity of variance, Chi-square for parental educational equivalence, Pearson’s correlation coefficient for scoring reliability, and Eta effect size equation to determine the magnitude of the effect.