In TTS dialogue-based lessons, the teacher–teacher format significantly moderates the motivation effects of both the CE factor (positive) and the RCE factor (negative)¶

Claim · All claims
Evidence · 1 study · causal r1 · q2 · i1 small
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i1 The interaction between the CE factor and the TT format was significant and positive for ARCS motivation (b = 0.162, p < .001, f = .17). → Fumie Watanabe 2026 q2 i1 The interaction between the RCE factor and the TT format was significant and negative for ARCS motivation (b = −0.238, p = .002, f = .15). → Fumie Watanabe 2026

Evidence¶

Fumie Watanabe 2026¶

Fumie Watanabe, Tota Suko, Takashi Ishida, Yuko Kuma, Manabu Kobayashi, Shigeichi Hirasawa, and Gendo Kumoi. (2026). Interaction Effects Between Learner Characteristics and Dialogue Format in TTS Dialogue-Based Lessons. https://arxiv.org/abs/2608.20822 doi:10.48550/arxiv.2608.20822

q2 · i1 · causal · r1

Linear mixed-effects model analysis of ARCS motivation from 222 first-year high school students viewing three formats, with participant intercepts as random effects. The article reports small-to-medium effect sizes (CE×TT f=.17; RCE×TT f=.15) and Marginal R2 = .095. Simple slopes shifted for CE from "negative in the TS format (−0.151) to near zero in the TT format (0.011)".

"the interaction between the RCE factor and the TT format was significant (b=−0.238,p=.002), as was the interaction between the CE factor and the TT format (b= 0.162,p<.001)"

Discussion¶

Related Claims¶

• Instruction should present the learning task as engaging and meaningful and promote positive expectations of success, because effort requires that learners value the task and believe they can succeed — the general claim this finding bears on, with the studies behind it
• Critical thinking disposition showed significant positive main effects on motivation and learning outcomes across all dialogue formats, with no format interaction — reports the opposite
• Interactions between learner characteristics and dialogue format for learning outcomes showed only trends toward significance, not significant effects — related
• Student–student and teacher–teacher dialogue formats elicited significantly higher ARCS motivation than the teacher–student format — related
• The teacher–teacher format received a significantly lower overall evaluation than the teacher–student format despite raising motivation, with no significant learner-characteristic interactions — related