XX XXXXXX reactivity, researchers XXXXXX opt XXX disguised participant XXXXXXXXXXX. This is where XXX researchers XXXXXXX XXXXX XXXXXXXX XXX pretend to XX part XX XXX XXXXXX that XXXX are XXXXXXXXX. XXXXXXXXXXX XXXXXXXXXXX XX also crucial because the group XX people XXXXX XXXXXXXX will XXX XX XXXXX XX this. XX XX XXXX, XXX researcher decides to XXXXXX crucial information without XXX knowledge of the subject XX XXXXXXXXXXX. XXXXXXXXXX XXXXXX also develop a relationship with XXX XXXXXXXXXX being observed XXXX XXXX XXXXXX the chances of reactivity XXXXX the XXXXXXXXXX XXXX be accustomed to XXX XXXXXXXX.
X blind experimental XXXXXX is a XXXXXXXXXXX XXXX for reducing XXXXXXXXXX in XXXXXXXXXXXXX research. This is XXXXX XXX researchers withhold XXXXXXXXXXX XXXX XXX XXXXXXXXXXX being observed. XXXX usually keep XXX contents XX the XXXXX a XXXXXX until it XX accomplished. This can XX done using selective participation.
The use of XXXXXXXX XXXX XX also a significant non-reactive method in XXXXXXXXXXXXX research. XXXXXXX secondary XXXXXXXX data XXX XX XXXX to develop conclusions XX XXX XXXXX of research. Response XXXX XXXXXXXX XX XXX XXXXXXXX XXXX. XXXXXXXXXXXX, XXXXXXXXXX XX reduced XXX the XXXXXXXX XXXXXX XXXX valid.