Table 1.
Means (M) and Standard Deviations (SD) of Empathy, Sibling Warmth, and Sibling Conflict
| Year 1 |
Year 2 |
Year 3 |
|
|---|---|---|---|
| M (SD) | M (SD) | M (SD) | |
| Empathy | |||
| Firstborn girls | 7.80 (1.37) | 7.81 (1.50) | 7.94 (1.47) |
| Firstborn boys | 6.07 (1.96) | 5.78 (1.93) | 5.86 (1.96) |
| Second-born girls | 7.04 (1.52) | 7.56 (1.51) | 8.02 (1.44) |
| Second-born boys | 5.73 (2.14) | 5.70 (2.00) | 5.74 (1.98) |
|
| |||
| Sibling warmth | |||
| Firstborn girls | 26.37 (5.20) | 25.94 (5.09) | 24.65 (5.08) |
| Firstborn boys | 24.02 (5.88) | 23.46 (5.87) | 22.41 (5.00) |
| Second-born girls | 25.12 (6.45) | 23.45 (5.50) | 22.62 (5.22) |
| Second-born boys | 22.61 (7.46) | 21.93 (6.34) | 20.77 (5.75) |
|
| |||
| Sibling conflict | |||
| Firstborn girls | 13.48 (3.09) | 13.93 (3.2 9) | 13.52 (3.53) |
| Firstborn boys | 13.94 (3.71) | 14.13 (3.17) | 13.50 (2.94) |
| Second-born girls | 13.53 (4.00) | 14.33 (4.12) | 14.12 (4.02) |
| Second-born boys | 14.50 (4.22) | 14.27 (4.57) | 14.05 (4.03) |