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 Face 
          to Face Interviews 
          Face to face interviews provide the closest interaction 
            between you and your respondent. 
          The standard procedure for a face to face interview is to 
            have a personal copy of the questionnaire and mark responses directly 
            in the codebook. 
          Care must be taken to maintain anonymity if promised. 
          Gaining access to people in the sample may be difficult 
            using a face to face method. 
          While response rate is improved using this method, the geographical 
            area that your sample can come from is limited.  
          Because of the limited time that you may have, you must 
            be careful not to introduce biases into your data by using this technique. 
            
              Trying to conduct interviews at only one time, for example, 
                can bias the data because of the people who tend to be at home 
                at that time. 
          Surveys can be longer because the respondent cannot see 
            how many questions are left. 
          You can gain access to hidden populations such as those 
            without a telephone or mail. |