Table 1.

Descriptive Statistics for Maternal Cognitions and Practices (N = 262)

	M	SD	range
Cognitions
SPPR Competencea	4.12	.58	2.17–5.00
SPPR Satisfaction	4.67	.49	1.80–5.00
SPPR Investment	3.22	.84	1.20–5.00
SPPR Role Balancea	3.80	.69	1.50–5.00
MSQ Social Interaction	4.46	.35	3.40–5.00
MSQ Limit Setting	3.98	.73	1.00–5.00
Internal Attributions of Failurea	15.66	4.18	7.00–27.33
External Attributions of Failure	19.89	3.99	8.00–30.00
Internal Attributions of Success	21.73	4.29	7.33–33.00
External Attributions of Success	25.16	3.64	9.50–35.00
Parenting Knowledge	.80	.08	.39–.95
Practices
MLU in morphemes	4.14	.69	2.38–6.52
Number of Word Roots	142.20	34.33	42.00–234.00
Pretense Demonstrationsb	.00	.86	−1.41–2.17
Frequency	4.18	2.81	.00–13.00
Duration	53.33	50.01	.00–270.00
Proportion Frequency	.40	.25	.00–1.00
Proportion Duration	.47	.31	.00–1.00
Pretense Solicitationsb	.00	.86	−1.91–3.88
Frequency	13.33	9.79	.00–80.00
Proportion Frequency	.62	.25	.00–1.00
Social Play	.98	1.65	.00–11.00
Praise	2.24	2.85	.00–18.00
Physical Affection	.93	1.54	.00–10.00
EA Sensitivity	7.23	1.24	3.00–9.00
EA Structuring	4.32	.72	2.00–5.00
Covariates
Family socioeconomic status	49.66	13.30	14.00–66.00
Planned pregnancy (% planned)	65.36%
Childbirth class (% who took a class)	90.48%
Fertility Problems (% with problems)	25.79%
Prenatal Care (% getting regular care)	99.13%
Delivery Method (% vaginal)	73.56%
Openness	.00	1.00	−2.42–2.01
Neuroticisma	.00	1.00	−2.73–2.32
Extraversion	.00	1.00	−2.57–2.24
Conscientiousness	54.37	9.83	22.00–72.00
Trustworthinessa	56.32	7.50	31.00–71.00
Verbal intelligence	107.83	17.03	60.00–159.00
Social Desirability	16.77	5.07	4.00–33.00
Child Reynell Comprehension	105.47	19.81	64.00–136.00
Child Mean length of utterance (MLU)	1.35	.32	0.00–2.88
Child Number of different word roots	22.08	14.97	0.00–84.00

Note.

^aResidualized for socially desirable response pattern.

^bMean standard aggregate (z-score).