The Kit-Build study is a template for evaluating a study tool before you try to prove it improves learning.

When a team finishes a learning tool, the first question is often whether students learned more. That is the hardest question to answer, and it is not the first one worth asking.
A study of a Kit-Build concept map authoring tool for English reading comprehension took the step before that one, asking whether students accept the tool at all. The method is worth copying, because it costs far less than a learning outcome study.
The authors screened participants instead of taking whoever was available. Seventy three third year undergraduates took part, all with a minimum TOEFL score of 450 and existing familiarity with web applications. Both conditions matter for an English reading task that runs in a browser. One sets a language floor, and the other removes basic usability as a source of noise.
The questionnaire used a seven point scale, split into two groups. Fifteen items measured the four standard TAM variables: perceived usefulness, perceived ease of use, attitude towards using, and behavioral intention. Eleven further items measured compatibility, habit, and enjoyment.
Keeping the groups apart is what makes the result readable. You can see whether the standard model still holds, and whether the extra variables earn their place. Here the core was consistent with the original TAM, and compatibility and enjoyment proved significant.

Compatibility and enjoyment are not abstract findings. They translate into concrete work: match the tool to the study habits students already have, and make the act of using it pleasant rather than merely functional.
The authors are careful about scope. They measured adoption, not learning gain, among a screened group at one university. That is a fair limit for this kind of study, and it sets up the obvious next experiment.

Pinandito et al. (2021). Students' Acceptance towards Kit-Build Concept Map Authoring Tool in Supporting Learning of English Reading Comprehension. Proceedings of the 5th International Conference on Sustainable Information Engineering and Technology.