Table 2.

Data collection methods.

Instrument	Session(s)	Approximate Time Spent	Description
Pre-/post-program survey	1 and 8	15 min	Collects participant demographics, preferred sources of health information, interest in science and health, and students’ perceptions regarding their health literacy skills
Topic and goal selection form	2	20 min	Collects students’ choice of topic, as well as their motivation for choosing this particular topic
Credibility screenshot activity	4	30-40 min	Using large poster-sized screenshots of 6 obesity-related websites—including a government site, a KidsHealth site, a blog, a Wikipedia site, a WebMD site, and a Dr. Oz site—we ask the students to place green sticky notes on the posters next to aspects of each site that they feel make the site credible and to put pink sticky notes next to aspects that they feel make the site not credible. Students write explanations on each sticky note. (For a more detailed description of this activity, see Subramaniam et al, 2015.)
Google search results activity	5	20-30 min	Using a printout of a Google Search results page for the keyword “obesity,” we ask students to put a star next to the 3 links they would most likely click on. We then engage them in a group discussion on the reasons for their choices. (For a more detailed description of this activity, see Subramaniam et al, 2015.)
Search log	4-6	30 min per session	Students fill out a search log form as they search for information regarding their selected topic. The form elicits the keywords they used for each of their searches; the URLs of the sites they visited; and their perceptions regarding the usefulness, credibility, and ease-of-use of each of these sites.
Final project goal sheet	4-6	5 to 10 min per session	The students fill out (and update, as needed) a form indicating their selected topic, the mode they will use to deliver their final project, and a list of the information and skills that they still need to complete their final project.
Participant observation	All	Eight 60- to 120-min sessions per school	All researchers attending the sessions conducted participant observation for the full duration of every session at each school.
Browser history downloading and documentation	Most sessions	30 min per session	Following the sessions during which students conducted research on their health topics, we collected their browser histories for future analysis.
Artifacts	Most sessions	Varies	This includes the research organizers (in which students recorded notes regarding what they were learning and the sources they consulted) and their final projects.
Post-program interviews	8	30 min per student	Interviews were conducted using open-ended questions that elicited students’ perceptions regarding the impacts of the program in terms of their interest in health, their learning, their health-related self-efficacy, etc.
Focus group	Final party/focus group	60 min	The questions focused on students’ experiences during the program. Focus group size is between 3 to 8 students.