TY  - RPRT
TI  - Methodological variables in Web-based research that may affect results: sample type, monetary incentives, and personal information.
AU  - K M O'Neil
AU  - S D Penrod
PY  - 2001
DO  - 10.3758/bf03195369
UR  - https://pubmed.ncbi.nlm.nih.gov/11447676/
ID  - 11447676
ER  -