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Licencia Creative Commons Atribución 4.0 Internacional (CC BY 4.0)
Revista Cátedra, 9(2), pp. 144-161, July-December 2026. e-ISSN:2631-2875
https://doi.org/10.29166/catedra.v9i2.8791
and Deep Learning were excluded, in order to avoid bias in measuring the impact of the
intervention.
3.3 Research Technique and Instrument
In this research, a survey was used as the technique to determine the level of satisfaction
with the use of artificial intelligence (AI) in the topic of linear and quadratic functions among
higher education students. The instrument used was a dichotomous questionnaire with
questions on subtopics such as quadrants of the Cartesian plane, increasing and decreasing
functions, the quadratic formula, and concave and convex parabolas. An open-ended
questionnaire with exercises was also used, where students developed solutions both
manually and using the AI system. This was key to measuring the academic performance of
higher education students.
First, the survey technique (ordinal qualitative variable; student satisfaction) was used to
measure the perceptions of the 81 students who received technological intervention
through the use of AI in the classroom. Regarding the instrument, the satisfaction survey
was administered after the AI classes concluded. The items consisted of five Likert scale
questions structured as follows: strongly agree, agree, neutral, disagree. The cognitive
process, in turn, facilitated the evaluation of the use of the AI-powered templates in terms
of mathematical problem comprehension, graphical representation, feedback, and self-
learning. Furthermore, to assess academic performance, a pretest (diagnostic assessment)
and a posttest (final assessment) were administered to both the experimental and control
groups to compare performance before and after the intervention.
Secondly, an assessment questionnaire (academic performance variable) was used to
measure the understanding of mathematical concepts. The instrument was used for
summative assessment on the topic of linear and quadratic functions. The items consisted
of ten questions with mathematical problems involving linear and quadratic functions,
including subtopics related to the Cartesian plane, increasing and decreasing functions, the
general formula of the quadratic function, manual problem-solving with verification, and
structured academic support clues within the AI-powered templates. Regarding the
cognitive process, this was developed through the resolution of mathematical problems
related to linear and quadratic functions, combined with methods of logical and abstract
reasoning, reading comprehension, and decision-making. In this way, cognitive skills
oriented towards the analysis, interpretation, and solution of mathematical problems were
strengthened..
3.4 Descriptive Statistics
It is important to mention that the descriptive analysis is structured around the ordinal
qualitative variable corresponding to the satisfaction survey, using frequency tables based
on the Likert scale (strongly agree, agree, neutral, disagree). Pie charts and bar graphs were
used to represent the results, allowing for better visualization of the frequencies obtained.
The median was also considered as a measure of central tendency, as it allows for
identifying the central value of the averages achieved by each group: control and
experimental (Maureira, 2025).
To determine the impact of AI use on student averages, a quantitative numerical variable
was used to assess learning of linear and quadratic functions, recording the grades of the 81
students (section A and section B). The research focuses on the use of measures such as
central tendency and the mean for both courses in terms of student averages, for both the
control and experimental groups. That is, essential characteristics of the dependent and