Table 3. List of input variables for the machine learning model.

Index	Variable (𝑥n)	Descriptions
1	Con1_answer_rate_back (𝑥16)	Accuracy rate in the later phase of content 1
2	Con2_touch_count_diff_back (𝑥47)	Number of unnecessary touches in the later phase of content 2
3	Con3_user_touch_count_back (𝑥74)	Total number of touches in the later phase of content 3
4	Con5_total_score_front (𝑥115)	Total score in the initial phase of content 5
5	Con3_first_touch_time_mean_front (𝑥65)	Mean response time to the first touch in the initial phase of content 3
6	Con1_decision_time_mean_front (𝑥13)	Mean decision-making time in the initial phase of content 1
7	Gender	Participant’s gender
8	Age	Participant’s age