Promoting Intrafamily Accountability for Reducing Cellphone Use While Driving in Adults and Their Teen Children

Not Applicable

Completed

Conditions: Teen Drivers
Motor Vehicle Accidents

Interventions: Device: CellControl

Registration Number: NCT02923271

Lead Sponsor: Children's Hospital of Philadelphia

Brief Summary: Research participants and their parents will be recruited to take part in a randomized control trial. Participants' and their parents' cellphone use will be observed during an initial baseline period. Participants and their parents will then be randomly assigned to one of two conditions: opt-out blocking with parental notification, opt-out blocking with bidirectional notification.

Detailed Description: In 2012, 3,328 people were killed and an additional 421,000 were injured in crashes involving a distracted driver. Adults aged greater than 40 years old accounted for 44% of these fatalities. Teen driving behavior is heavily influenced by parental driving behaviors with a recent study showing the proportion of teens that text while driving is 14% higher if they have observed their parents doing the same. The proportion of adults who text while driving has recently surpassed teen rates with a 2013 national poll finding 49% of adult car commuters admit to texting while driving, most stating that they did it out of habit. Based on previous findings, it is unlikely that teens will reduce their texting while driving unless their parents do the same.

The objective of this study is to compare measures of acceptance and feasibility across teen-parent dyads randomized to bidirectional teen-parent (teen monitors parent and parent monitors teen) vs. teen only (parent monitors teen) cellphone use while driving.

Research participants will be recruited to take part in a randomized control trial. Participants' cellphone use will be observed during an initial baseline period. Participants will be randomly assigned to one of two conditions (bidirectional teen-parent monitoring or parental monitoring of the teen only). An exit survey and interview will be administered to both the parent and teen separately at the end of the study.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 34

Inclusion Criteria

Both parent and teen will be enrolled together as a pair
Teen:
- Is a high school student (age 16 or 17 at start of the study)
- Holds a valid driver's license
- Lives in parent/guardian's home
- Primarily drives one car
- Drives an average of 4 or more trips per week
- Has their own iPhone 4S or newer or Android 4.3 or newer smartphone with data plan
- Admits to texting while driving at least once in the last month
Parent:
- Is the parent of a teen driver
- Drives an average of 4 or more trips per week
- Primarily drives one car
- Has their own iPhone 4S or newer or Android 4.3 or newer smartphone with data plan
- Admits to texting while driving at least once in the last month

Exclusion Criteria

Parent and/or teen already uses a smartphone app or hardware device to limit cellphone use while driving

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Teen-Parent Monitoring Group	CellControl	Cellcontrol DriveID device will automatically turn on when the teen or parent begins driving and will be pre-set to block all calls and text messages when the car is in motion but participants will have the ability to override the blocking. The teen-parent monitoring group involves will send email notifications to the teen when their parent unlocks their phone while driving and vice versa. Participants (parents and teens) will self-report information on their individual driving behaviors for the three weeks prior to study enrollment, including how often they report texting while driving and self-report cellphone use. At the end of the study participants will be asked to report feedback about the use the cellphone blocking technology and their perceptions for whether their safety improved using the technology.
Teen Only Monitoring Group	CellControl	Cellcontrol DriveID device will automatically turn on when the teen or parent begins driving and will be pre-set to block all calls and text messages when the car is in motion but participants will have the ability to override the blocking. The teen only group involves parental monitoring of the teen's cellphone use while driving only. The parent will receive an email notification when their teen unlocks their phone while driving. Both parents and teens will drive under the same restrictions, but only the parent is notified of teen cellphone use. Participants (parents and teens) will self-report information on their individual driving behaviors for the three weeks prior to study enrollment, including how often they report texting while driving and self-report cellphone use. At the end of the study participants will be asked to report feedback about the use the cellphone blocking technology and their perceptions for whether their safety improved using the technology.

Primary Outcome Measures

Name	Time	Method
Change in Number of Cellphone Unlocks Per Hour of Drive Time	8 weeks	Change in number of cellphone unlocks per hour of drive time between baseline and the end of the intervention period

Secondary Outcome Measures

Name	Time	Method
Change in the Number of Minutes of Phone Use Per Hour of Driving	8 weeks	Change in the number of minutes of phone use per hour of driving between baseline and the end of the intervention

Trial Locations

Locations (2): The Children's Hospital of Philadelphia
🇺🇸
Philadelphia, Pennsylvania, United States
University of Pennsylvania
🇺🇸
Philadelphia, Pennsylvania, United States