Answer: redemptive.
Step-by-step explanation:
Okay, let us fill in the gap from the the question above;
''... participants whose personal stories include a REDEMPTIVE narrative are more often successful in sustaining sobriety''
To understand the above statement very well we have to understand some Psychological terms, they are;
====> NARRATIVE: a narrative is a story(whether it is plausible or not) that expresses the narrator's experience in a particular subject matter. Narratives may be in written form or spoken.
====>REDEMPTIVE NARRATIVE: redemptive narrative is a Psychology term use to show how a story is being told to express the narrator's experience in a subject matter and this include all records of the events for example all the bad things, challenges, good things and so on that happened in the story.
So, if a person tells personal stories that involves redemptive narrative the person is more often successful in sustaining sobriety.