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Family life cycle

Community Medicine
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Basic Model of Nuclear family life cycle- 
 

Phases of
family life cycle

Beginning of phase

End of phase

1. Formation

Marriage

Birth of 1st child

2. Extension

Birth of 1st child

Birth of last child

3. Complete

Extension

Birth of last child

1st child leaves home

4. Contraction

1st child leaves home

Last child leaves home

5. Complete

Contration

Last child leaves home

1st spouse dies

6. Dissolution

1st spouse dies

Death of survivor