Schaefer & Bayley (1963): study US 1929
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
Investigation
- Public
- Children followed from age 0 to 18, Berkeley, California, USA, 1929-47
- Sample
- Respondents
- N = 54
- Non Response
- 13% drop-outs (7 children and their mothers)
- Assessment
-
Multiple assesment methods
Behavioral observation and interviews
Happiness Measure(s) and Distributional Findings
- 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)