Participants detected emotional valence but did not distinguish between discrete emotions of the same valence¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q3
Currency · newest study 2022 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Ratings of the happy instructor did not differ between the happy and content scales, suggesting participants did not distinguish between positive emotions. → Lawson 2022 q3 i? Ratings of the frustrated instructor did not differ between the frustrated and bored scales. → Lawson 2022 (2)

Evidence¶

Lawson 2022¶

Lawson, A. P., & Mayer, R. E. (2022). The Power of Voice to Convey Emotion in Multimedia Instructional Messages. International Journal of Artificial Intelligence in Education. https://doi.org/10.1007/s40593-021-00282-y

q3 · i? · causal · r2

Bonferroni-corrected pairwise t-tests on happy-instructor ratings in the Mturk experiment found the happy instructor rated high on both positive scales; the article reports no significant happy–content difference. Equivalence was not tested.

"There was no significant difference between the happy and content ratings ( p = 0.136), suggesting that participants did not distinguish between positive emotions."

Lawson 2022 (2)¶

Lawson, A. P., & Mayer, R. E. (2022). The Power of Voice to Convey Emotion in Multimedia Instructional Messages. International Journal of Artificial Intelligence in Education. https://doi.org/10.1007/s40593-021-00282-y

q3 · i? · causal · r2

Bonferroni-corrected pairwise t-tests on frustrated-instructor ratings in the same experiment found no significant frustrated–bored difference; the article reports no effect size for this contrast. Equivalence was not tested.

"but there was no significant difference between the frustrated and bored ratings (p = 0.430)."

Discussion¶

Related Claims¶

• Recognizing a frustrated instructor's emotional tone required the embodied onscreen agent, contradicting the voice hypothesis for that emotion — related
• Participants rated frustrated and bored instructors higher on negative than positive emotion scales, with the frustrated effect stronger when the agent was on screen — related
• Participants rated happy and content instructors higher on positive than negative emotion scales, supporting the positivity hypothesis — related
• Voice alone conveys the emotional tone of happy, content, and bored instructors as accurately as voice plus an embodied onscreen agent — related