Interactive programs with preschool children bring smiles and conversation to older adults: time-sampling study

Table 2 Indicators

	Formula
Visual attention occured between the generations =	Number of intergenerational attention units/	×100
Visual attention occured between the generations =	Observational time 20 units (5 min.)	×100
Smiling rate =	Number of positive units/	×100
Smiling rate =	Observational time 20 units (5 min.)	×100
Weighted smiling rate =	(Number of Smile 3 units × 3 + Number of Smile 2 units × 2 + Number of Smile 1 units)/	×100
Weighted smiling rate =	Observational time 20 units (5 min.)	×100
Constructive behaviour rate =	Number of constructive units/	×100
Constructive behaviour rate =	Observational time 20 units (5 min.)	×100
Intergenerational conversation rate =	Number of intergenerational conversation units/	×100
	Observational time 20 units (5 min.)