Abstract

This study evaluated the effectiveness of E.C.H.O. (Educational Content via Holographic Output) in enhancing the comprehension skills of Grade 10 learners at Lagro High School. In response to the need for technology-based instruction, the study examined how learners comprehended 3D reading materials through reader-response factors: visual interpretation, active participation, and affective reaction. Guided by Reader-Response Theory, the study used a quasi-experimental, one-group pretest–posttest design involving 35 purposively selected Grade 10 students. Researcher-made tests measured comprehension before and after the intervention, and a survey questionnaire assessed learner perceptions. Data were analyzed using frequency and percentage distributions, weighted mean, and a paired t-test. Of the respondents, 37% were female, 91% were aged 14–15 years, and 85.71% had previous exposure to holograms. The mean score increased from 17.114 on the pretest to 23.029 on the posttest. The reported p-value was less than .00001, indicating a statistically significant difference. Respondents rated E.C.H.O. positively in visual interpretation (composite mean = 3.39), active participation (3.51), and affective reaction (3.60), indicating favorable perceptions of its contribution to comprehension. Despite reported challenges involving clarity and limited access to resources, the findings indicate that E.C.H.O. supported learners’ comprehension through visual, participatory, and affective engagement. The material may be applicable across subjects such as literature, reading, and science when aligned with curriculum and technology standards. Teacher training and careful implementation are recommended to support student motivation, active participation, and meaningful learning.