The feud became bitter, however, when Pearson used his position as editor of Biometrika to attack Fisher's use of the chi-squared test in a 1922 paper. Pearson went much further, however, and claimed that Fisher had done a disservice to statistics by widely publishing erroneous results.
Ang mahigpit na away ay naging mapait, gayunman, kapag Pearson ginamit ang kanyang posisyon bilang editor ng Biometrika sa atake Fisher's paggamit ng Chi-squared test sa isang papel 1922. Pearson nagpunta marami pa, gayunpaman, at inaangkin na Fisher had tapos na ang isang kapinsalaan sa mga istatistika sa pamamagitan ng malawak na-publish ng maling resulta.