Table 3.
Correlations between 6-month temperament measures.
| Temperament measure | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IBQ fear | 1 | |||||||||||||||||||
| IBQ distress/anger | 0.10 | 1 | ||||||||||||||||||
| IBQ smiling | −0.07 | −0.02 | 1 | |||||||||||||||||
| IBQ soothability | 0.05 | −0.04 | 0.30 | 1 | ||||||||||||||||
| IBQ orienting | 0.05 | −0.11 | 0.27 | 0.25 | 1 | |||||||||||||||
| IBQ activity | 0.17 | 0.40 | 0.21 | 0.03 | 0.01 | 1 | ||||||||||||||
| Fear—stranger | 0.02 | 0.02 | −0.05 | −0.05 | 0.06 | 0.10 | 1 | |||||||||||||
| Fear—masks | 0.04 | 0.04 | 0.05 | −0.04 | 0.04 | 0.04 | 0.15 | 1 | ||||||||||||
| Anger—AR | −0.01 | 0.35 | 0.02 | 0.02 | −0.05 | −0.15 | 0.02 | 0.20 | 1 | |||||||||||
| Anger—CS | 0.27 | −0.04 | 0.03 | 0.10 | −0.12 | 0.06 | 0.19 | 0.27 | 0.28 | 1 | ||||||||||
| Sadness—AR | 0.05 | −0.27 | −0.13 | −0.06 | −0.07 | 0.24 | 0.04 | 0.19 | 0.63 | 0.20 | 1 | |||||||||
| Sadness—CS | −0.22 | 0.23 | 0.01 | −0.09 | 0.10 | −0.09 | 0.19 | 0.24 | 0.13 | 0.52 | 0.29 | 1 | ||||||||
| PA—puppets | 0.02 | 0.00 | 0.16 | −0.17 | 0.05 | 0.00 | −0.12 | −0.06 | 0.04 | −0.03 | 0.03 | −0.04 | 1 | |||||||
| PA—peekaboo | −0.10 | 0.01 | 0.15 | −0.01 | −0.16 | 0.09 | −0.06 | 0.01 | 0.03 | −0.01 | −0.02 | 0.03 | 0.28 | 1 | ||||||
| Slides/interest | 0.01 | 0.02 | 0.00 | −0.07 | 0.01 | 0.04 | −0.03 | 0.05 | −0.04 | −0.05 | 0.00 | 0.04 | −0.07 | 0.10 | 1 | |||||
| AL—BT | 0.04 | −0.09 | 0.11 | 0.11 | −0.05 | 0.10 | 0.11 | 0.08 | 0.11 | 0.11 | 0.16 | 0.33 | 0.22 | 0.21 | 0.01 | 1 | ||||
| Lab-TAB fear | 0.05 | 0.02 | 0.03 | −0.09 | 0.06 | 0.13 | – | – | 0.03 | 0.25 | 0.18 | 0.13 | −0.12 | −0.01 | −0.03 | 0.04 | 1 | |||
| Lab-TAB anger | 0.30 | −0.01 | 0.01 | 0.12 | −0.15 | 0.06 | 11 | 0.21 | – | – | 0.44 | 0.31 | 0.01 | 0.03 | −0.09 | −0.09 | 0.24 | 1 | ||
| Lab-TAB sadness | −0.23 | 0.21 | −0.01 | −0.08 | 0.07 | −0.03 | 0.05 | 0.09 | 0.32 | 0.39 | – | – | −0.01 | −0.01 | 0.04 | 0.21 | 0.26 | 0.55 | 1 | |
| Lab-TAB PA | −0.02 | −0.03 | 0.27 | −0.13 | −0.12 | 0.09 | −0.14 | −0.04 | 0.02 | 0.02 | −0.01 | 0.00 | – | – | 0.01 | 0.29 | −0.11 | 0.01 | −0.02 | 1 |
Bold correlations are significant at the 0.05 level. Ns range from 380 to 557. Due to varying sample sizes, the size of the correlation required to reach significance varies for each scale or episode. IBQ, Infant Behavior Questionnaire; AR, Arm Restraint; PA, Positive Affect; AL, Activity Level; BT, Basket of Toys; Lab-TAB, Laboratory Temperament Assessment Battery. Correlations account for non-independence of twins within family.