When do the effects of single-session interventions persist? Testing the mindset + supportive context hypothesis in a...

Area of Science:

• Psychology
• Education
• Intervention Science

Background:

• Single-session interventions show varied effects on youth mental health.
• The mindset + supportive context hypothesis suggests interventions are more effective in supportive environments.
• The synergistic mindsets intervention reframes stress as an asset for students.

Purpose of the Study:

• To test if instructor messages sustain the effects of a single-session intervention.
• To examine the impact of supportive contexts on intervention outcomes.
• To understand when intervention effects persist or fade over time.

Main Methods:

• 1675 college students were randomly assigned to the synergistic mindsets intervention or a control.
• Participants received either supportive or neutral messages from instructors throughout the semester.
• Weekly measures assessed stress appraisals and predisposition to academic challenges.

Main Results:

• The intervention combined with supportive messages maximized positive stress appraisals and challenge-seeking.
• Intervention effects amplified over the semester with supportive instructor messages.
• Without supportive messages, intervention effects diminished over time.

Conclusions:

• Supportive contextual cues are critical for the persistence and amplification of single-session interventions.
• This study demonstrates the crucial role of the learning environment in intervention efficacy.
• Findings highlight the potential for synergistic mindsets interventions when supported by the academic context.