Online Research Diary — Digital Diary Method for Data Collection
Online Research Diary Method · Also known as: digital research diary, e-diary research, online reflective journal, web-based research diary
The online research diary method is a data collection technique in which participants document their experiences, thoughts, or behaviours in structured or open-ended digital diary entries over a defined period. Delivered via email, web forms, blogging platforms, or dedicated apps, it captures temporally proximate, naturalistic data that retrospective interviews cannot provide. It is widely used in health research, education, psychology, and social sciences.
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When to use it
Use an online research diary when you need data that are temporally close to lived experience — tracking daily moods, health symptoms, professional reflections, or behavioural patterns over time. It is especially strong when retrospective recall would be unreliable and when repeated contact with participants is feasible. It suits longitudinal and process-oriented questions in health research, education, organisational studies, and consumer behaviour. Do not use it when the study window is very short (a single occasion), when participants have low digital literacy or limited internet access, when the phenomenon unfolds too rapidly for diary entries to capture it, or when the research question requires rich conversational data best gathered by interview.
Strengths & limitations
- Captures data close in time to real experiences, minimising retrospective recall bias.
- Enables longitudinal tracking of change, variability, or patterns across days or weeks.
- Online delivery removes geographic constraints, allowing access to geographically dispersed participants.
- Flexible format — text, ratings, images, or audio — can be tailored to the research question.
- Lower burden than repeated interviews while still yielding rich, repeated-measures data.
- Requires sustained participant motivation over the data collection window; attrition and incomplete entries are common.
- Digital access and literacy are prerequisites, potentially excluding older adults or populations with limited internet connectivity.
- Open-ended diary data from multiple participants across multiple time points can generate very large volumes of text, making analysis resource-intensive.
- Lacks the conversational depth of in-depth interviews; follow-up prompts can partly compensate but cannot fully replicate probing.
Frequently asked
How is an online research diary different from a regular online survey?
A survey collects data at a single time point with fixed questions. An online research diary collects repeated entries from the same participants over a defined period, capturing change and process over time. Diary entries are typically more open-ended and participant-driven, and the researcher often interacts with participants through follow-up prompts between entries.
What platform should I use to collect online diary entries?
Common options include secure email, REDCap or Qualtrics (with repeated scheduled links), private blog platforms with access controls, and dedicated diary apps such as Day Reconstruction Method tools. The choice depends on data sensitivity, participant technical skills, and whether you need multimedia entries. Always prioritise data security and participant confidentiality.
How many participants and how many entries do I need?
For qualitative online diaries, 6–20 participants with daily or several-times-weekly entries over two to six weeks is typical. For quantitative diary studies the sample may be larger (50–300+). The key consideration is total entry volume: too few entries per participant limits longitudinal analysis; too many exhausts participants. Pilot testing your entry burden before the main study is strongly advised.
How do I handle dropout and missing entries?
Automated reminders at entry times help, as does personalised follow-up from the researcher when entries are missed. Building a rapport through brief feedback on entries sustains motivation. Decide in advance how much missing data is acceptable and plan sensitivity analyses if dropout is informative (e.g., participants who disengage may differ systematically from those who complete the diary).
Can online research diaries be used in mixed-methods designs?
Yes — a common design pairs open-ended diary entries (analysed qualitatively for themes and narrative) with structured Likert-scale items in each entry (analysed quantitatively for trends and variability). This allows the richness of qualitative data alongside the power of longitudinal quantitative tracking within a single instrument.
Sources
- Alaszewski, A. (2006). Using Diaries for Social Research. Sage Publications. ISBN: 978-0761941965
- Hyers, L. L. (2018). Diary Methods. In M. C. Blanco & A. J. Breckenridge (Eds.), Understanding Research Methods in Psychology. Sage. link ↗
How to cite this page
ScholarGate. (2026, June 3). Online Research Diary Method. ScholarGate. https://scholargate.app/en/survey-methodology/online-research-diary
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
- Diary MethodSurvey Methodology↔ compare
- Field NotesSurvey Methodology↔ compare
- Online Participant ObservationSurvey Methodology↔ compare
- Online Semi-structured InterviewSurvey Methodology↔ compare
- Research DiarySurvey Methodology↔ compare