Facially expressed joy during class correlated positively with post-session self-reported session joy for both students and instructors, though the instructor correlation did not reach significance¶

Claim · All claims
Evidence · 1 study (2 entries) · associational r1 · q3 · i2 medium
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 For students, facially expressed joy correlated positively with self-reported session joy (r = 0.334, p = 0.006). → Frenzel 2024 q3 i? For instructors, the correlation between facially expressed joy and self-reported session joy was positive but not statistically significant (r = 0.461, p = 0.079), attributed to small sample size. → Frenzel 2024 (2)

Evidence¶

Frenzel 2024¶

Frenzel, A. C., Dindar, M., Pekrun, R., Reck, C., & Marx, A. K. G. (2024). Joy is reciprocally transmitted between teachers and students: Evidence on facial mimicry in the classroom. Learning and Instruction, 91, 101896. https://doi.org/10.1016/j.learninstruc.2024.101896

q3 · i2 · associational · r1

Preliminary correlational analysis in Mplus treating self-reported session joy as ordinal, with students nested within instructors (TYPE = COMPLEX). Table 3 reports r = 0.334 [0.096; 0.572], p = 0.006 for students; the article describes the correlations as "positive and medium-sized for both groups".

"These correlations were positive and medium-sized for both groups (r = 0.33/.46 for students/instructors), indicating that the more instructors and students facially expressed joy during class, the more they also reported to have enjoyed the class."

Frenzel 2024 (2)¶

Frenzel, A. C., Dindar, M., Pekrun, R., Reck, C., & Marx, A. K. G. (2024). Joy is reciprocally transmitted between teachers and students: Evidence on facial mimicry in the classroom. Learning and Instruction, 91, 101896. https://doi.org/10.1016/j.learninstruc.2024.101896

q3 · i? · associational · r1

Same correlational analysis for the 13 instructors: Table 3 reports r = 0.461 [CI -0.054; .975], p = 0.079. The article attributes the non-significance to the small sample size; equivalence was not tested.

"However, it is worth noting that the correlation did not reach statistical significance for instructors due to the small sample size."

Discussion¶

Related Claims¶

• Instructors' and students' facial expressions of joy cross-recurred substantially above chance during a critical time window of about -2 to +3 seconds relative to instructors' expressions — related
• Automated facial joy coding showed high sensitivity and specificity against human coding for both instructor and student videos — related
• Instructors' post-session self-reported joy correlated positively with class-average instructor–student joy mimicry, but students' self-reported joy did not — related
• Instructor-led facial joy mimicry predominated: 58% of dyads were instructor-led and the critical lag window's midpoint was around +500 msec after the instructor's expression — related
• Instructor–student joy mimicry was predominantly dyad-specific: only 16.4% of variance in the mimicry index was attributable to instructors