| Publication |
| Author(s) | Schaefer, E.S.; Bayley, N. |
| Title | Maternal Behavior, Child Behavior and Their Intercorrelation. |
| Source | Monographs of the Society for Research in Child Development, Serial no. 87, 1963, Vol. 28, 3 - 127 |
| URL | http://www.jstor.org/stable/pdfplus/1165694.pdf |
| Investigation |
| Public | Children followed from age 0 to 18, Berkeley, California, USA, 1929-47 |
| Last assesment | 1947 |
| | T1: 1929 T2: 1947 |
| Survey name | Not available |
| | Berkely Growth Study: See Bayley 1933. |
| Sample | Not available |
| | Non-probability chunk sample of children, born in two Berkeley hospitals in 1928 and 1929, and their mothers (Berkeley Growth Study; see Bayley 1933). Full-term infants of white, English speaking parents: |
| Respondents N = | 54 |
| | 27 boys, 27 girls. |
| Non Response | 13% drop-outs (7 children and their mothers) |
| Assesment | Multiple methods |
| | Behavioral observation and interviews |
| General remarks | Same study also reported in MCGRA 1968.
Data gathering: Structured and unstructured observations of overt behavior of mothers and their children during the children's first three years, and of the child- ren's behavior until the age of 18, and interviews with the mothers between the children's age of 9 to 14 years.
N: (54 children and their mothers) during the first years of the children's life. The sample is smaller at higher ages but never less than 13 boys and 13 girls. For the interview with mothers in the period of the children's age from 9 to 14 years, data of 34 mothers were available. |
| Happiness measure(s) used |
| Full text | Time sampling of happy behaviors
The children were rated during the first 3 years of their lives, after 10, 11, 12, 13, 14, 15, 18, 21, 24, 27, 30 and 36 months of living for 'Emotional tone: unhappy - happy' on a 7-point scale.
Scoring rated on 7-step numerical scale.
Summation:
Later the ratings of 10 - 12, 13 - 15, 18 - 24, and 27 - 36 months were combined.
Rated on 7-step numerical scale. |
| Classification | A-CP-mi-tsb-n-7-a |
| Author's label | Emotional tone |
| Error estimates | Retest reliability within combined months:
10 - 12 months: for boys r = +.83, for girls r = +.56
13 - 15 months: for boys r = +.80, for girls r = +.85
18 - 24 months: for boys r = +.78, for girls r = +.47
27 - 36 months: for boys r = +.66, for girls r = +.63
Retest reliability between combined months:
10 - 12 x 13 - 15 months: for boys r = +.64 (05), for girls r = +.72 (05)
10 - 12 x 18 - 24 months: for boys r = +.61 (05), for girls r = +.51 (05)
10 - 12 x 27 - 36 months: for boys r = +.50 (05), for girls r = +.48 (05)
13 - 15 x 18 - 24 months: for boys r = +.65 (05), for girls r = +.69 (05)
13 - 15 x 27 - 36 months: for boys r = +.68 (05), for girls r = +.48 (05)
18 - 24 x 27 - 36 months: for boys r = +.64 (05), for girls r = +.72 (05) |
Finding used in
nation ranks | Yes |
| Author's label | Subject Code
Finding | Subject description |
| Activity | P05ac | Active |
| Activity | P06ac | Later personality development |
| Current characteristics (at 10-36 months of age) | P05 | PERSONALITY: CURRENT TRAITS |
| Freedom allowed by the mother (at Ss age 0-3) | F01ae04c | Permissive vs dominant |
| Freedom allowed by the mother (at Ss age 9-14) | F01ae04c | Permissive vs dominant |
| Happiness at age 12 - 18 | H04ab01c | Long term happiness (< 10 years ago) |
| Later characteristics (at 12-18 yearsof age) | P06 | PERSONALITY: LATER |
| Later characteristics (at 12-18 yearsof age) | P06 | PERSONALITY: LATER |
| Later characteristics (at 27-96 months of age) | P06 | PERSONALITY: LATER |
| Later characteristics (at 9-12 years of age) | P06 | PERSONALITY: LATER |
| Later marital happiness of mother | F01ad03b | Parents marital satisfaction |
| Mother characteristics (at Ss age 0-3) | F01ae | Parental behavior (earlier for adults, current for young) |
| Mother's characteristics (at Ss age 9-14) | F01aa03 | Later family situation |
| Speed of movements | P05ac | Active |
| Speed of movements | P06ac | Later personality development |