Developing Text-based Support for Parents of Adolescents After an Emergency Department Visit

无干预：Control (standard care)

实验性的：A-F texting component

The A-F texting component will include content consistent with best-practice recommendations for parents to buffer youth against suicide risk.

行为的：A-F texting component

Over the course of the 6-week intervention parents in the A-F condition will receive 1 message each day.

实验性的：A-F texting plus P-F texting component

A-F texting plus P-F texting component arm includes the A-F component, as above, and P-F component. The P-F component includes an embedded micro-randomized trial (MRT) involving two daily randomizations to P-F message vs. no message conditions for the duration of the 6-week intervention. Participants who are randomized to this arm will be randomized twice each day (morning and evening) to either receive or not receive the P-F message at each randomization.

行为的：A-F texting component

Over the course of the 6-week intervention parents in the A-F condition will receive 1 message each day.

行为的：P-F texting component

Over the course of the 6 week intervention, parents will receive between 1-2 messages, depending on randomization (in addition to A-F component messages)

Percentage of eligible participants who agree to participate in the study

Percentage of participants who complete follow-up assessments

Percentages of participants randomized to the intervention who remain active (i.e. do not request to stop receiving messages) (Texting arms only)

Participating parents' satisfaction with the intervention

Measured using the Modified Client Satisfaction Questionnaire (CSQ) with a range of 1-4 with higher scores indicating greater satisfaction