What is ODIN?
The Open Dynamic Interaction Network (ODIN) platform provides a way to use a person’s smartphone to ask them questions based on their current location, recent physical activity, ongoing social interactions, and continuous physiological markers. By asking questions about the motivating factors close to the times, places, and contexts of interest, ODIN limits the negative impacts of errors in participant recall. Data collected by ODIN can be used to train models to facilitate intervention planning. For example, personalized forecasting models can use ODIN to deliver just-in-time (JIT) behavioral intervention messages to a subset of participants as part of a clinical trial.
How does one use ODIN?
- Using the ODIN website, researchers specify study questions and the rules governing the contexts in which each question should be asked.
- he website allows the researcher to print coupon QR codes which can be distributed to eligible participants in a rolling recruitment process.
- Each participant downloads ODIN from the Apple/Google store and enters their coupon. ODIN then asks them appropriate questions in each context for the study participation period.
- Researchers can use the website to monitor the study, analyze data, modify the protocol, build forecasting models, and push intervention messages to participants.
What types of questions can be asked?
Question type
A real-world example of the Questions
Multiple choice (single and multi-select)
Which of the following substances did you use yesterday? (1)
heroin, (2) meth, (3) cocaine, (4) PCP… Select all that apply.
(RDAR study)
Free text entry
Likert scale
Psychometric tests
You will see a series of images and will be asked to recall the
order and arrangement of images you saw. Press ready to
begin (REACT study)
Open: new types of questions!
What types of sensors and contextual rules are supported?
Sensors
Rules
A real-world example of the Rule
Time
- Specific times of day
- Periodically
- Randomly within a given time interval each day
- On certain days since the start of participation
At 9am and at 5pm every weekday for the first 7 days of participating in the study (RDAR study)
GPS
- On arriving at a given geofenced
location - On departing from a given
geofenced location
When the participant arrives near one of the 515 bars and alcohol outlets in Lincoln, Nebraska, during each of their hours of business (CASA study)
Bluetooth
- When two participants have been
interacting for some time - When two participants stop
interacting after some time
When three or more student
participants who have been located in the same space for more than 20 minutes leave the interaction (MFAFY study)
Beacon
- When a person arrives within a specified distance from a beacon
- When a person leaves the vicinity of a beacon after having been near it for some time
When a youth experiencing
homelessness leaves a shelter
facility (SAC study)
Activity
Some time after a person starts or stops
- Running
- Walking
- Driving
- Biking
- being Stationary
When an person who uses opioids has been stationary (or their phone has been stationary) for more than 12 hours (RDAR study)
What does it cost to use ODIN?
Free Tier
Free Tier
2
10
Pilot Tier
2
30
30 days
30 days
$2200
$1400/mo x 2 mo
How can I become a Free Tier user of ODIN?
The ODIN app is available via Apple Store or Google Play. To access the Free Tier ODIN website follow this link.
For tutorials on ODIN follow this link.
What other scientific projects used ODIN?
Study
Target Population
N
Participation
CASA
Individuals with Alcohol Use Disorder in non-hospitalized residential treatment
60
30 days
SAC
Youth experiencing homelessness
150
30 days
MFAFY
300
90 days
RDAR
150
14 days
BROCK
100
60 days
CASE4ADHD
40
14 days
NAPPER
Undergraduate students who self-identify as binge
drinkers
120
90 days
REACT
Undergraduate students who drink at bars
90
14 days