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Table 3 Estimated fixed and random effects for quantitative observation outcomes from baseline to 6-month trial endpoint

From: Primary Care Triple P for parents of NICU graduates with behavioral problems: a randomized, clinical trial using observations of parent–child interaction

 

Fixed effects

Random effects

Outcome

n

Intervention

P

Time

P

Intervention × Time

P

Intercept

P

Showing affectiona

66

0.05 (0.14)

.716

−0.004 (0.02)

.843

0.001 (0.03)

.972

0.07 (93.45)

.999

Non-descriptive praiseb

66

−0.71 (0.70)

.313

−0.07 (0.10)

.464

0.19 (0.14)

.165

1.17 (0.71)

.097

Descriptive praiseb

66

−0.16 (0.29)

.568

−0.004 (0.04)

.915

0.05 (0.05)

.368

0.34 (0.13)

.008

Incidental teachingc

66

0.09 (0.24)

.701

−0.02 (0.04)

.523

0.01 (0.05)

.857

0.27 (291.82)

.999

Ask, say, dod

66

0.48 (0.22)

.036

0.02 (0.03)

.398

−0.10 (0.04)

.020

0.08 (0.05)

.103

Directed discussiond

66

0.17 (0.25)

.497

−0.003 (0.03)

.934

−0.01 (0.04)

.808

0.10 (0.04)

.012

Planned ignoringd

66

0.13 (0.13)

.308

−0.02 (0.02)

.369

−0.02 (0.02)

.513

0.003 (0.01)

.834

Clear, calm instructionsb

66

0.41 (0.31)

.193

−0.02 (0.05)

.602

−0.01 (0.06)

.816

0.17 (0.14)

.219

  1. Note. Because the random effect has only one level, the covariance structure is scaled identity.
  2. aRepeated measures covariance structure is toeplitz.
  3. bRepeated measures covariance structure is scaled identity.
  4. cRepeated measures covariance structure is compound symmetry correlation metric.
  5. dRepeated measures covariance structure is diagonal.