Varia Vol. 120, 2020/4 - 94 pagesResearch articlesPages 251 to 269Factorial validation of the multi-threat scale in FrenchBy Caroline Desombre, Mickael Jury, Muriel Renard, Célénie BrasseletPages 271 to 296Analyzing arithmetic word problem-solving performance in middle school studentsBy Annette Jarlégan, Catherine Billard, Youssef Tazouti, Catherine Thevenot, Michel FayolPages 297 to 314Children’s representation of inheritance as a function of perceptual and label cuesBy Karine Mazens, Carole BergerTheoretical notesPages 315 to 339Behavioral synchronization and affiliation in dogs: analogy with human processesBy Charlotte Duranton, Florence Gaunet