Mine is quality time closely followed by Words of Affirmation
Hubby is Acts of Service
I have not given the test to the kids BUT I think my oldest is Acts of Service and youngest is words of affirmation judging by behaviors.
Hubby and I taught a bible study on this book many years ago. It is a great relationship tool. It helped me a lot bc I HATE/LOATHE housework, cleaning etc but know it speaks volumes to hubby so I just do it.
