Complex sentence: However, many people have concluded that accepting the premisses of this argument leads to the logical conclusion that research of any kind is futile, and other qualitative researchers have developed non-quantitative criteria for assessing reliability and validity.
Split into simpler sentences: However, many people have concluded that accepting the premisses of this argument leads to the logical conclusion that research of any kind is futile. Other qualitative researchers have developed non-quantitative criteria for assessing reliability and validity.