TY  - RPRT
TI  - Web-based research: methodological variables' effects on dropout and sample characteristics.
AU  - Kevin M O'Neil
AU  - Steven D Penrod
AU  - Brian H Bornstein
PY  - 2003
DO  - 10.3758/bf03202544
UR  - https://pubmed.ncbi.nlm.nih.gov/12834076/
ID  - 12834076
ER  -