In addition to sample bias and ethical issues (e.g., securing consent, assuring anonymity, and ...

In addition to sample bias and ethical issues (e.g., securing consent, assuring anonymity, and protecting site security), a third concern about factors that may affect the credibility of Internet-mediated study findings is
 
  a. The interviewer's ability to establish rapport with study participants
  b. The fact that use of a pseudonym might cause participants to make up information about the phenomenon
  c. The researcher's ability to transcribe the data gathered through online interviews
  d. Reliability and validity of data, although terms most often applied to quantitative research, might be an issue since the researcher can't verify whether or not participants meet inclusion criteria for the study