Instructor body posture affects students' perceived instructor agency, mainly through the vertical dimension¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r3 · q3 · i2 medium
Currency · newest study 2024 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 In the pilot experiment, perceived agency was significantly affected by the vertical dimension but not the horizontal dimension. → Traulsen 2024 q3 i2 In the preregistered experiment, perceived agency was significantly affected by the vertical dimension and, additionally, by the horizontal dimension and their interaction. → Traulsen 2024 (2)

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 · i2 · causal · r3

Pilot experiment, 2×2 ANOVA on perceived agency (α = .81). The vertical dimension was significant (partial η2 = .066) whereas the horizontal dimension "had no effect" (partial η2 = .009, p = .197); the interaction was also non-significant.

"Perceived agency was significantly influenced by the variations on the vertical dimension, F (1, 190) = 13.415, p < .001, partial η2 = .066, while variations of the horizontal dimension, F (1, 190) = 1.675, p = .197, partial η2 = .009, had no effect."

Traulsen 2024 (2)¶

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 · i2 · causal · r3

Preregistered experiment with 434 students; 2×2 ANOVA showed vertical (partial η2 = .041) and, "now also", horizontal effects (partial η2 = .017) plus a significant interaction (partial η2 = .011), with the lowest agency in the slumped/closed condition.

"perceived agency was, significantly affected by variations of the vertical dimension, F (1, 430) = 18.385, p < .001, partial η2 = .041, but now also by the horizontal dimension, F (1, 430) = 7.289, p = .007, partial η2 = .017."

Discussion¶

Related Claims¶

• 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 affects students' liking of the instructor on both dimensions and their interaction, mainly driven by the slumped/closed condition — 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
• Instructor body posture shows no significant main or interaction effects on students' motivation, though pairwise contrasts favour conditions over slumped/closed — related