This article aims to provide best practices for effectively implementing one of the most common methods of data collection: the in-depth interview. Having already discussed the diversity of research methods for collecting data, given the nature and insights of the in-depth interview in the previous part (In-depth interview: an important method of qualitative data collection), this guideline focuses on developing a practical consideration in preparing, implementing and applying the in-depth interview method. APPROACHING THE IN-DEPTH INTERVIEW • Actions necessary to have a good preparation for the interview process Take into consideration the number of interview subjects with respect to the purpose of the research. Contemplate the available information and logistical resources: time and money, quality with respect to quantity Determine the skills to conduct the interview or train interviewers Consider the role and criteria of a good interviewer. Establish personal contact Consider ethical issues through the seven phases of the interview  Deliberate the quality of the interview, the level of competence The choice of questions (open-ended questions, exploratory questions are preferred) Determine the form of the interviews: individual interviews, focus group interviews, telephone interviews, electronic interviews. Ensure a suitable place for the interview ( quiet, private) Check the electronic device (microphone and audio recorder) Prepare before engaging in the interview Be aware of cultural differences and biases Note to interviewees the study and principles of ethics (confidentiality, anonymity) Use the tools technical: The Ethnograph, Atlas.ti, Folio Views, NVivo• A Practical Process of the Interv...... middle of paper ......of the validity, reliability, generalizability and improvement of the quality of data are always needed during interviews. It is suggested to make good preparation to overcome the problems that affect the quality of the data. (For more details, see section: Actions needed to have good preparation for the interview process). • Time consuming: It can take a long time to complete the interview process. See the “A Consideration of Timing” section to manage a good timeline for conducting data collection during the in-depth interview. • Participants versus interviewers: Participants can cause difficulties in the interview (such as giving a long answer, changing their emotions, interviewing the interviewer, having memory problems). The interviewer must be adequately trained to be able to use interview techniques in dealing with complex situations.