Table 2.
Description and Statistics of Studies Included in Meta-analysis.
| Study and Measurement Categories | Play/Pre-SF | SF | Post-SF | Hedges g | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Publication | UOM# | SES | RSA method | Age+ | N | mean (SD) | N | mean (SD) | N | mean (SD) | SF | Re-union |
| Bazhenova et al. (2001) | lnRSA | middle class | Porges | 5 | 41 | 3.73 (1) | 41 | 3.28 (.8) | 41 | 3.77 (1) | −0.49 | 0.54 |
| Moore & Calkins (2004) | lnRSA | middle class | Porges | 3 | 61 | 2.84 (.8) | 60 | 2.64 (.7) | 62 | 2.92 (.9) | −0.27 | 0.35 |
| Feldman et al. (2010) | lnRSA | middle class | Porges | 6 | 33 | 3.65 (.7) | 33 | 2.74 (.7) | 33 | 2.83 (.8) | −1.27 | 0.12 |
| Weisman et al. (2012) | lnRSA | middle class | Porges | 5 | 35 | 3.45 (.8) | 35 | 3.25 (.8) | 35 | 3.63 (1.1) | −0.26 | 0.39 |
| Stewart et al. (2013) | lnRSA | middle class | Porges | 6 | 75 | 3.25 (.7) | 75 | 3.14 (.9) | 75 | −0.13 | ||
| Montirosso et al. 2014 | RSA | middle class | Porges | 4 | 78 | 62.1 (124.3) | 78 | 54.14 (74.7) | 78 | 144.09 (519.5) | −0.08 | 0.24 |
| Suurland et al. (2017) (low-risk)** | lnRSA | middle class | Grossman | 6 | 69 | 3.36 (.4) | 68 | 3.14 (.6) | 67 | 3.28 (.5) | −0.46 | 0.26 |
| Sharp et al. (2012) | lnRSA | mixed SES | Porges | 7.25 | 257 | 3.32 (.8) | 253 | 2.83 (.8) | 247 | 3.35 (1) | −0.61 | 0.6 |
| Ritz et al. (2012) *(uncorrected) | lnRSA | mixed SES | Grossman | 6 | 23 | 1.47 (.2) | 23 | 1.26 (.3) | 23 | 1.35 (.3) | −.80 | 0.31 |
| Quigley et al. (2016) | lnRSA | mixed SES | Porges | 6 | 94 | 3.57 (1) | 91 | 3.4 (1) | 89 | 3.47 (1) | −0.17 | 0.07 |
| Busuito and Moore (2017) | lnRSA | mixed SES | Porges | 7 | 50 | 3.65 (1.1) | 51 | 3.4 (.9) | 48 | 3.61 (1.1) | −0.25 | 0.21 |
| Bush et al. (2017) | lnRSA | high risk | MindWare | 6 | 63 | 4.27 (1) | 60 | 3.99 (1.2) | 44 | 4.21 (1.2) | −0.25 | 0.18 |
| Suurland et al. (2017) (high-risk) ** | lnRSA | high risk | Grossman | 6 | 40 | 3.42 (.3) | 38 | 3.27 (.4) | 38 | 3.13 (.6) | −0.38 | 0.27 |
| Conradt et al. (2010) | RSA | high risk/low SES | Grossman | 5 | 91 | 0.02 (.01) | 91 | 0.01 (.01) | 91 | 0.01 (.01) | −0.28 | 0 |
Note:
*
Standard unadjusted values were used for comparison.
**
Low-risk and high-risk samples used in Suurland et al. (2016) are presented.
#
UOM; Units of Measurements.
+
Age is in months.