Omnibus tests found significant group, phase and group-by-phase effects on questions 1 and 2, and predominantly group effects on questions 3 and 4¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? For question 1 and question 2 the group factor, the phase factor and their interaction were all statistically significant; for question 3 only group was significant, and for question 4 group and the group-by-phase interaction were significant while phase alone was not. → Tatiana Íñiguez-Berrozpe 2025

Evidence¶

Tatiana Íñiguez-Berrozpe 2025¶

Tatiana Íñiguez-Berrozpe, Carmen Elboj-Saso, Francesco Marcaletti, Pablo Bautista-Alcaine. (2025). Learning to deal with hate speech: An online collective intelligence experiment on the Collective Learning platform. Intern. J. Comput.-Support. Collab. Learn. https://doi.org/10.1007/s11412-025-09460-9

q2 · i? · causal · r1

Fixed-value omnibus tests (Table 2) on mean scores per group, question and phase in the Collective Learning experiment. For question 2 the same pattern held (group p = 0.011, phase p = 0.003, together p < 0.001); only test statistics are printed, "no effect size" is given.

"For question 1, we found significant effects stemming from the independent variables “group” (p < 0.001) and “phase” (p < 0.001), as well as from the two taken together (p < 0.001)."

Discussion¶

Related Claims¶

• The large online group showed significant score improvements from phase onward on question 1 while the smaller groups did not, indicating collective intelligence capacity emerged in the large group
• Mean answer scores in the large group rose continually across the interaction phases, especially from phase 4 onward, but stagnated on question 3
• The small groups did not improve on questions 1 and 4, G2 declined on questions 2 and 3, and G3 improved only on question 2