, . ( , ) . , . . , , , (Lee, 1988; Olson, Lavee, 1989). , . , . , , , . , , (Reynolds, Remer & Johnson, 1995). .
. , , , , . , , , (Blieazner, Mancini, 1987; Greenberg, Becker, 1988; Hagestad, 1987). ( ) , .
( 16) . , . (Cherlin, Furstenberg, 1986).
40% (Doka, Mertz, 1988). . , , (Doka, Mertz, 1988). , .
, . . , , . -
18. : 777
, (Johnson & Barer, 1987).