Strength:further research shows the impact on minority influence. E.g.Moscovici's research was completed where ppts were exposed to minority influence but were able to give answers privately, they found even higher levels of agreement with the minority than in the original research. It's a strength because minority influence was genuine as when giving private answers, ppts still gave minority viewpoints, suggesting that it wasn't a superficial agreement with the minority. If ppts weren't influenced by the minority when giving answers privately, these answers wouldn't reflect the minority view