Table 3

Details of data collection process

Method	Key informants	Number of key informants	Length and place	Tools	Purpose
Individual interview	URCS volunteers	19 (10 East branch, 9 West branch)	45–60 min Various locations (home, work place, branch office)	Semistructured interview guide Both interviewers present in 14 interviews Recorded Translator used for 8 interviews	To understand the management and context shaping the motivation and organisational behaviour of volunteers
Individual interview	Programme manager	2 (1 East branch, 1 West branch)	60–90 min per interview Branch office	Semistructured interview guide Both interviewers present Recorded	To understand the management and context shaping the motivation and organisational behaviour of volunteers
Focus groups	URCS volunteers involved in the immunisation campaign	2 groups (1 group of 9 volunteers in East branch, 1 group of 9 volunteers in West branch)	2 h per focus group Branch office or community	Semistructured interview guide Both interviewers present in 3 discussions Translator used for 1 group Notes taken	To understand the management and context shaping the motivation and organisational behaviour of volunteers
Observation	Programme manager	2 (1 East branch, 1 West branch)	1 week Branch office and field	Both interviewers present Field notes taken	To describe the leadership styles and managerial practices of programme managers
Observation	URCS volunteers involved in the immunisation campaign	20 (10 East Branch, 10 West Branch)	1 week. Branch office and field	Both interviewers present Field notes taken	To describe the context at branch level: that is, the branch team Group dynamics, manager/volunteer interaction, to describe the outcomes: volunteer behaviours
Discussion	Programme manager	2 (1 East Branch, 1 West Branch)	1 h discussion	Questionnaire adapted from the Problems at Work Questionnaire of Deci et al39 40	To describe the level of autonomy support provided by the programme manager
	URCS staff (CBHFA programme manager, director youth and organisational development, director youth and volunteer management, community health coordinator)	4	1 h discussion RC headquarters in Kampala	Questionnaire Using a typology of context tool Both interviewers present Field notes taken	To describe the overall RC organisational context: structure, mission, culture, policies, core activities, resources, organisational development of volunteers…
	Government or private health facilities ‘staff’	8	1–3 h discussions per location Private and government health facility (West branch) Public health department (East branch)	Informal visit Both interviewers present Field notes taken	To describe the government/private sector health context and professionals’ attitudes towards the RC volunteers
	Community members: local leaders, professors, students, beneficiaries	20	1–3 h discussions per location Various locations (Schools, university, workplace, home…)	Informal visit Both interviewers present Field notes taken	To describe the community context and community members’ attitudes towards the RC volunteers

CBHFA, Community Based Health and First Aid; RC, Red Cross; URCS, Uganda Red Cross Society.