Gender graphs The difference between Primary/Secondary Data The difference between Primary and Secondary is that Primary data is data that is collected by the investigator themselves.E.g a survey. Secondary data is data collected by someone else and used by the investigator. i got this information from: S, S. (2019). Difference Between Primary and Secondary Data (With Comparison Chart) - Key Differences . [online] Key Differences. Available at: https://keydifferences.com/difference-between-primary-and-secondary-data.html#:~:targetText=Primary%20data%20refers%20to%20the,collected%20by%20someone%20else%20earlier.&targetText=Surveys%2C%20observations%2C%20experiments%2C%20questionnaire%2C%20personal%20interview%2C%20etc [Accessed 22 Nov. 2019]. Average teenage viewing time 7 hours 22 mins i got this information from: https://www.washingtonpost.com/technology/2019/10/29/survey-average-time-young-people-spend-watching-videos-mostly-youtube-has-doubled-since/