Table 4.
Effect of VIP and BB on Parent-Child Interaction at 6 Months: Selected Individual StimQ Items
| VIP (n=126) | BB (n=150) | Control (n=134) | F or χ2 | P Valuea | |
|---|---|---|---|---|---|
| ALM | |||||
| Infant toys, mean (SD) scaled score | 1.4 (0.5)b | 1.2 (0.6)b | 1.0 (0.5)b | 19.2 | <.001 |
| Age started playing with toys, mean (SD), moc | 2.5 (1.6)b | 2.6 (1.4)b | 3.0 (1.3)b | 4.3 | .02 |
| READ | |||||
| Reads books to child (yes/no), % | 86.4 | 89.2b | 78.4b | 6.8 | .03 |
| Age started reading, mean (SD), mo(n=345)c | 2.8 (1.8) | 3.2 (1.9) | 3.3 (1.9) | 2.9 | .06 |
| Frequency of reading, mean (SD), d/wk | 3.9 (2.6)b | 3.6 (2.4) | 3.1 (2.5)b | 3.4 | .03 |
| Reads every day (yes/no), % | 69.6 | 75.0b | 59.0b | 8.5 | .01 |
| Reads bedtime story, mean (SD), d/wk(n=345)c | 1.9 (2.6)b | 1.2 (2.0)b | 1.4 (2.2) | 3.1 | .04 |
| Reads books at other times of day, mean (SD), d/wk (n=345)c | 3.7 (2.4) | 3.4 (2.3) | 3.1 (2.3) | 1.8 | .16 |
| Names pictures in books (yes/no), % | 78.4b | 81.1b | 64.9b | 10.9 | .004 |
| Asks questions about pictures (yes/no), %(n=344)c | 56.5b | 46.2b | 28.8b | 16.8 | <.001 |
| PIDA, % | |||||
| Names objects in house | 64.0b | 47.3b | 42.9b | 12.8 | .002 |
| Names objects in grocery store | 38.4b | 27.4 | 21.8b | 8.9 | .01 |
| PVR | |||||
| Plays in front of a mirror, % | 57.6 | 49.0 | 42.9 | 5.6 | .06 |
| Practices making sounds together, % | 60.8b | 55.2 | 45.1b | 8.6 | .04 |
| Talks while feeding, % | 26.4 | 15.9 | 17.3 | 5.4 | .07 |
| Tells stories, mean (SD), d/wkb | 1.5 (2.3)b | 0.8 (1.6)b | 0.8 (1.6)b | 5.9 | .003 |
| Talks together about surroundings, mean (SD), d/wk(n=353)c | 3.5 (3.1)b | 2.7 (2.7) | 1.8 (2.7)b | 9.8 | <.001 |
Abbreviations: ALM, Availability of Learning Materials; BB, Building Blocks; PIDA, Parental Involvement in Developmental Advancement; PVR, Parental Verbal Responsivity; READ, Reading Activities; VIP, Video Interaction Project.
a
Ominibus P value based on analysis of variance or χ2 test.
b
Subscripts denote groups differing with P<.05 on planned pairwise comparisons using Tukey honestly significant difference test for analysis of variance or Keppel’s modified Bonferroni correction for χ2.
c
Items piloted for possible inclusion in revised StimQ assessment.