Exploring Change Mechanisms in a Complex Intervention: Lessons Learned From a Longitudinal Constructivist Grounded...

Area of Science:

• Health Services Research
• Qualitative Research Methods
• Nursing Research

Background:

• Effective complex health interventions require understanding their underlying change mechanisms.
• Qualitative methods are crucial for exploring the nuances of intervention processes.
• Longitudinal designs capture temporal dynamics essential for complex interventions.

Purpose of the Study:

• To provide a practical example of exploring change mechanisms in complex health interventions.
• To demonstrate the application of a longitudinal constructivist grounded theory approach.
• To share lessons learned from applying this methodology to a psychoeducational intervention for dementia caregivers.

Main Methods:

• A longitudinal constructivist grounded theory approach was employed.
• Data were collected through interviews with family dementia caregivers over time.
• Quantitative intervention outcomes were integrated into the qualitative analysis.

Main Results:

• Comparing data across time points revealed subtle changes not explicitly stated by participants.
• Interviews during the intervention offered greater insight into change awareness than post-intervention interviews.
• Within- and across-participant analyses identified unique and shared change pathways.
• Integrating quantitative data highlighted facilitators and barriers to change.

Conclusions:

• The longitudinal constructivist grounded theory approach effectively elucidates complex intervention change mechanisms.
• Considering the temporal and complex nature of participant experiences is vital for in-depth understanding.
• This methodology provides valuable insights for developing and refining health interventions.