Table 2.

Questionnaires assessing mental health problems and well-being.

	Trios of offspring aged under 15 and their parents		Trios of offspring aged over 16 and their parents
Objectives	Offspring	Parents	Offspring	Parents	Number of items, scale types
Depressive symptoms	DSRS-C	K6	K6	K6	DSRS-C: 9 items, 3-point LS K6: 6 items, 5-point LS
Subjective happiness	SLSS	SWLS	SWLS	SWLS	SLSS: 7 items, 6-point LS SWLS: 5 items, 7-point LS
Internalizing/externalizing symptoms	Self-rated SDQ for 11–17 year olds	SDQ for the parents of 4–17 year olds	x	x	25 items, 3-point LS
Trauma and re-experiencing symptoms	x	PDS	PDS	PDS	See main text for details.
Loneliness	x	x	TIL	TIL	3 items, 5-point LS
Fear of COVID-19	FCV-19S	FCV-19S	FCV-19S	FCV-19S	7 items, 5-point LS

“x” means that the questionnaire is not administered to that participant. DSRS-C, Birleson Depression Self-Rating Scale for Children (80, 81); K6, Kessler 6 Psychological Distress Scale (82, 83); SDQ, Strength and Difficulties Questionnaire (84); TIL, Three-Item Loneliness Scale (85, 86); FCV-19S, Fear of COVID-19 Scale (87, 88); LS, Lickert scale.