Comparative data on understanding, concreteness, and feedback length across nine product presentation conditions

Primary measures include perceived ease_of_use and concreteness, both measured on a 5-point scale. To assess participant engagement and feedback quality, the number of characters in open-ended responses was recorded for four categories: product usage (len_usage), benefits (len_benefit), defects (len_defect), and improvement ideas (len_improve), with invalid responses converted to zero. The dataset also provides the mean character count across these four categories (len_total_avg) and its log-transformed value (len_total_log).

Effort (perceived mental effort) was also measured, alongside three items capturing innovation perceptions: innov_1 (originality), innov_2 (novelty), and innov_3 (creativity). Finally, innov_avg represents the composite mean score of these three innovation-related items.</p>