Stability and change of maternal psychological SCL-90-R dimensions
In line with first aim, that is, exploring fluctuations in maternal SCL-90-R mean scores as a function of time, results showed that, with the exception obsessive-compulsive and sleep difficulties profiles, maternal psychological dimensions significantly change over time (Table 1). For clarity, for each SCL-90-R subscale, we will present first the results obtained with repeated measures ANOVA and then those obtained with GCM.
Table 1. Means (standard deviation) of mothers’ SCL-90-R subscales by time of assessment
|
Time of Assessment
|
F
|
|
T1
|
T2
|
T3
|
Time of Assessment
|
SCL-90 -R subscales
|
|
|
|
|
RD
|
.41
± .57
|
.45
± .55
|
.47
± .61
|
6.98*
|
PC
|
.53
± .72
|
.53
± .74
|
.35
± .54
|
204.84***
|
AN
|
.42
± .62
|
.38
± .61
|
.49
± .74
|
4.83*
|
A/H
|
.45
± .54
|
.35
± .55
|
.37
± .56
|
12.71***
|
DY
|
.60
± .68
|
.63
± .77
|
.32
± .46
|
127.16***
|
DI
|
.50
± .74
|
.50
± .74
|
.34
± .57
|
29.00***
|
O/C
|
.46
± .64
|
.44
± .64
|
.46
± .73
|
.
.03
|
SD
|
.40
± .65
|
.37
± .67
|
.39
± .68
|
.
03
|
***p < .001
** p < .01
*p < .05
Particularly, relational distress scores (F (1,380) = 6.98, p < .05) tended to significantly increase from T1 to T2 and to remain stable from T2 to T3; the — 2 log likelihood model comparison tests (χ2(1) = 1.46, p > .05) indicated that this pattern of change over time was best described by a significant positive linear change over time, indicating a linear and moderately increasing trajectory (F (380.000) = 116.82, p < .001).
Aggressiveness/hostility scores (F (1,380) = 12.71, p < .001) tended to significantly decrease from T1 to T2 and to remain stable from T2 to T3; according to the — 2 log likelihood model comparison tests (χ2(1) = 26.72, p < .01), this trajectory over time was best described by a U-shaped pattern, characterized by a significant negative linear slope, followed by a slight rebound, indicating a positive quadratic (curved) slope (F (380.001) = 27.68, p < .001).
Anxiety scores (F (1,380) = 4.83, p < .05) tended to significantly decrease from T1 to T2 and to increase from T2 to T3; the — 2 log likelihood model comparison tests suggested (χ2(1) = 39.33, p < .01) that, on average, their means scores over time were best described by a significant negative linear slope and a positive quadratic (curved) slope, indicating a U-shaped pattern (F (380.000) = 21.94, p < .001).
Physical complaints (F (1,380) = 204.84, p < .001), Dysphoria (F (1,380) = 127.16, p < .001) and Depressive Ideation scores (F (1,380) = 29.00, p < .001) tended to remain stable from T1 to T2 and to show a significantly decrease from T2 to T3; comparing the fit of the models with the — 2 log likelihood model comparison tests (χ2(1) = 40.82, p < .01, χ2(1) = 88.31, p < .01 and χ2(1) = 24.30, p < .01, respectively), these patterns of change over time were best described by a significant positive linear slope, followed by a negative quadratic (curved) slope, indicating an inverted U-shaped pattern (F (380.000) = 41.83, p < .001, F (380.000) = 95.10, p < .001 and F (380.000) = 25.09, p < .001, respectively).
Lastly, as already mentioned, obsessive-compulsive (F (1,380) = .03, p = .854) and sleep difficulties scores (F (1,380) = .03, p = .954) were stable over time; coherently, the — 2 log likelihood model comparison tests (χ2(1) = 2.32, p > .05, χ2(1) = 1.49, p > .05) suggested that their pattern of change were best described by flat trajectories with no trend in their means scores, that is neither a significant increasing nor a significant decreasing over time (F (380.000) = .01, p = .944, F (380.000) = .03, p = .854, respectively).
Stability and change of children dysregulation profile
According to second aim, that is, exploring fluctuations in children dysregulation profile as a function of time, results reported a significantly change in its scores (Table 2). Also in this case, for clarity, we will present first the results obtained with repeated measures ANOVA and then those obtained with GCM.
Table 2. Means (standard deviation) of children’ dysregulation profile (PD) by time of assessment
|
Time of Assessment
|
|
|
T1
|
T2
|
T3
|
F
|
DP
means
scores
|
17.71
±9.58
|
18.97
±10.98
|
8.56
±8.71
|
459.15***
|
Particularly, results (F (1,379) = 459.15, p < .001) showed a significant scores’ increasing from T1 to T2 followed by a decreasing trend from T2 to T3; the — 2 log likelihood model comparison tests (χ2(1) = 27.74, p < .01) indicated this pattern of change over time was best described by an inverted U-shaped pattern, characterized by a significant positive linear slope, followed by a rebound, indicating a negative quadratic (curved) slope (F (760.000) = 238.90, p < .001).
Impact of SCL-90-R maternal psychological dimensions at T1 on children dysregulation profile over time
With respect to third aim, we explored the impact of each maternal psychological dimensions at T1, along with its interaction with time of assessment, on children dysregulation profile mean scores.
When the impact of maternal psychological dimensions at T1 was assessed (Table 3), results showed that children of mothers with scores above the clinical threshold on all SCL-90-R subscales considered, that is, relational distress (F (1,378) = 312.18, p < .001), physical complaints (F (1,378) = 361.12, p < .001), anxiety (F (1,378) = 291.65, p < .001), aggressiveness/hostility (F (1,378) = 248.55, p < .001), dysphoria (F (1,378) = 531.30, p < .001), depressive ideation (F (1,378) = 362.47, p < .001), obsessive-compulsive (F (1,378) = 423.30, p < .001) and sleep difficulties (F (1,378) = 276.19, p < .001), showed significantly higher dysregulation profile mean scores than children of mothers with scores below the clinical threshold.
Table 3. Means (standard deviation) of children’ dysregulation profile (PD) by mothers’ SCL-90-R subscales at T1
|
DP means scores
|
|
SCL-90-R
subscales at T1
|
|
|
F
|
RD
|
< 1
|
12.35
±.36
|
312.18***
|
> 1
|
26.95
±.74
|
PC
|
< 1
|
12.32
±.43
|
361.12***
|
> 1
|
27.74
±.74
|
AN
|
< 1
|
12.81
±.35
|
291.65***
|
> 1
|
28.80
±.87
|
A/H
|
< 1
|
13.01
±.36
|
248.55***
|
> 1
|
28.77
±.93
|
DY
|
< 1
|
11.03
±.33
|
531.30***
|
> 1
|
25.41
±.53
|
DI
|
< 1
|
12.12
±.35
|
362.47***
|
> 1
|
26.92
±.69
|
O/C
|
< 1
|
12.13
±.33
|
423.30***
|
> 1
|
27.91
±.69
|
SD
|
< 1
|
12.77
±.36
|
276.19***
|
> 1
|
28.16
±.85
|
When the interaction between maternal psychological dimensions at T1 and time of assessment was considered (Table 4), results reported, both between- and within-groups, significant differences in dysregulation profile mean scores in relation to the following subscales: relational distress (F (1,378) = 9.17, p < .01), physical complaints (F (1,378) = 21.96, p < .001), anxiety (F (1,378) = 27.50, p < .001), aggressiveness/hostility (F (1,378) = 7.44, p < .01), dysphoria (F (1,378) = 28.12, p < .001), depressive ideation (F (1,378) = 5.20, p < .05), and obsessive-compulsive (F (1,378) = 4.03, p < .05).
Table 4. Means (standard deviation) of children’ dysregulation profile (PD) by mothers’ SCL-90-R subscales at T1 and time of assessment
|
|
Time of Assessment
|
F
|
SCL-90 scales at T1
|
|
T1
|
T2
|
T3
|
Time of Assessment x
SCL-90 scales at T1
|
RD
|
< 1
|
15.20
±.46
|
15.87
±.50
|
5.98
±.39
|
9.17**
|
> 1
|
28.61
±.95
|
32.46
±1.05
|
19.77
±.81
|
PC
|
< 1
|
15.64
±.48
|
15.73
±.48
|
5.59
±.34
|
21.96***
|
> 1
|
27.20
±1.03
|
33.82
±.1.03
|
22.20
±.72
|
AN
|
< 1
|
15.86
±.47
|
16.16
±.47
|
6.40
±.38
|
27.50***
|
> 1
|
28.87
±1.15
|
35.93
±1.16
|
21.59
±.94
|
A/H
|
< 1
|
16.04
±.47
|
16.54
±.50
|
6.44
±.37
|
7.44**
|
> 1
|
28.74
±1.21
|
35.00
±1.28
|
22.56
±.96
|
DY
|
< 1
|
14.46
±.49
|
14.69
±.52
|
3.94
±.28
|
28.12***
|
> 1
|
25.99
±.78
|
29.89
±.83
|
20.34
±.45
|
DI
|
< 1
|
15.19
±.47
|
15.60
±.50
|
5.56
±.36
|
5.20*
|
> 1
|
27.76
±.94
|
32.43
±1.00
|
20.55
±.73
|
O/C
|
< 1
|
15.15
±.45
|
15.65
±.48
|
5.59
±.35
|
4.03*
|
> 1
|
28.83
±.94
|
33.42
±1.01
|
21.46
±.73
|
SD
|
< 1
|
15.33
±.43
|
16.63
±.53
|
6.35
±.39
|
.79
|
> 1
|
31.16
±1.03
|
32.23
±1.25
|
21.10
±.92
|
***p < .001
** p < .01
*p < .05
Particularly, regarding to between-groups differences, at T1, T2 and T3 children of mothers with scores above the clinical threshold showed significantly higher dysregulation profile mean scores than children of mothers with scores below the clinical threshold.
Regarding to within-groups differences, children of mothers with scores above the clinical threshold showed a significant increasing in dysregulation profile scores from T1 to T2 followed by a significant decreasing trend from T2 to T3. Differently, children of mothers with scores below the clinical threshold showed a stable trend from T1 to T2 followed by a significant decreasing at T3.
On the contrary, no significant differences, nor between neither within-groups, were observed in dysregulation profile mean scores according to the interaction between maternal sleep difficulties at T1 and time of assessment (F (1,378) = .79, p = .374).