Instructor body posture affects students' liking of the instructor on both dimensions and their interaction, mainly driven by the slumped/closed condition¶

Claim · All claims
Evidence · 1 study · causal r3 · q3 · i1 small
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i1 In the preregistered experiment, students' liking was significantly affected by the vertical dimension, the horizontal dimension, and their interaction. → Traulsen 2024

Evidence¶

Traulsen 2024¶

Traulsen, S. J., & Zander, L. (2024). Straighten your back, open your arms! Effects of instructor's body postures in educational videos on students' interest and motivation. Learning and Instruction. https://doi.org/10.1016/j.learninstruc.2024.101959

q3 · i1 · causal · r3

Preregistered experiment with 434 students; 2×2 ANOVA on liking (two items, α = .93) showed all three effects significant (partial η2 = .014, .048, .023), with pairwise differences suggesting the pattern was "mainly driven by the slumped/closed condition."

"The vertical dimension, F (1, 430) = 6.132, p = .014, partial η2 = .014, the horizontal dimension, F (1, 430) = 21.741, p < .001, partial η2 = .048, and the interaction of both dimensions, F (1, 430) = 10.060, p = .002, partial η2 = .023, were significant."

Discussion¶

Related Claims¶

• Instructor body posture affects students' perceived instructor agency, mainly through the vertical dimension — related
• Instructor body posture affects students' perceived instructor communion on both the vertical and the horizontal dimension — related
• An instructor's upright versus slumped and open versus closed body posture in an educational video affects students' perceived instructor enthusiasm on both dimensions — related
• Instructor body posture shows no significant main or interaction effects on students' motivation, though pairwise contrasts favour conditions over slumped/closed — related
• Students' respect for the instructor is affected by the horizontal posture dimension but not the vertical dimension, with pairwise differences no longer significant after correction — related
• Instructor body posture shows no direct effects on students' situational interest, but indirect-only mediation effects through perceived enthusiasm — related