The Effectiveness of Maher's Crystallized Intelligence Psycho-Educational Intervention on Enhancing Fluid Intelligence in Upper Elementary School Students in Tehran
Keywords:
Fluid intelligence, crystallized intelligence, skilled multifaceted intelligence, skilled psycho-educational intervention, elementary studentsAbstract
Objective: The present study aimed to investigate the effectiveness of the Maher Crystallized Intelligence Psycho-Educational Intervention Package on fluid intelligence in upper elementary school students in Tehran.
Methodology: This study is applied in terms of its objective and falls within the category of quasi-experimental research using a pretest-posttest-follow-up design with a control group for data collection. The statistical population included upper elementary school students (ages 10 to 12) in Tehran during the 2023–2024 academic year. A total of 40 students were selected using a multi-stage cluster sampling method and were randomly assigned to experimental and control groups. Data were collected using the Maher Multidimensional Fluid Intelligence Test (MMFIT). The experimental group received the Maher Crystallized Intelligence Psycho-Educational Intervention Package in 14 sessions, each lasting 90 minutes. The control group received no intervention during this period. Data were analyzed using multivariate mixed analysis of variance (MANOVA) and SPSS version 27.
Findings: The findings indicated that the Maher Crystallized Intelligence Psycho-Educational Intervention Package had a statistically significant effect on dimensions of fluid intelligence (η² ranging from 0.22 to 0.83) (P < .001).
Conclusion: Based on the findings, the Maher intervention package effectively enhances fluid intelligence (including perception, reasoning, attention, memory, and processing speed) in children aged 10 to 12 and can be utilized as an effective intervention for this age group.
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