1. Read the article abstract (summary) first to get a general idea of the data collection technique. If it looks promising, click through to the PDF to see a complete description from the article.
2. You need to find an article that only used one data collection technique, specifically survey or interview.
3. Searching for the word "respondents" as "Abstract AB" may be helpful; when added as another search row, it might narrow your results down to summaries that specifically mention the people who were involved as subjects in the survey or interview.
When searching for surveys, there are different keywords you can use to search.
Option 1: Search for the word "survey" as "Abstract AB" to find "survey" or "surveys" in the article's summary.
Option 2: Search for the word "questionnaire" as "Abstract AB" to find "questionnaire" or "questionnaires" in the article's summary.
When searching for interviews, stick with the obvious.
Search for the word "interview" as "Abstract AB" to find "interview" or "interviews" in the article's summary.