Psychometric Features of the Arabic Version of the Children’s Communication Checklist (CCC2)

Figures & data

Table 1 SLI Convergent Validity and Reliability of the Constructs

Construct	Cronbach’s Alpha	Composite Reliability (rho_c)	AVE
Speech	0.8	0.862	0.557
Syntax	0.641	0.776	0.416
Semantics	0.762	0.84	0.515
Coherence	0.765	0.842	0.517

Table 2 SLI Discriminant Validity

	Coherence	Semantics	Speech	Syntax
A1 Speech 2	0.45	0.39	0.77	0.59
A2 Speech 24	0.49	0.59	0.83	0.59
A3 Speech 29	0.47	0.48	0.69	0.56
A4 Speech 38	0.38	0.49	0.73	0.53
A5 Speech 44	0.43	0.47	0.71	0.57
B1 Syntax 1	0.24	0.25	0.39	0.42
B2 Syntax 17	0.4	0.49	0.38	0.65
B3 Syntax 27	0.49	0.6	0.59	0.67
B4 Syntax 36	0.55	0.56	0.61	0.76
B5 Syntax 43	0.59	0.46	0.44	0.66
C1 Semantics 4	0.39	0.58	0.3	0.39
C2 Semantics 6	0.62	0.71	0.33	0.52
C3 Semantics 12	0.58	0.79	0.59	0.61
C4 Semantics 32	0.59	0.77	0.62	0.57
C5 Semantics 46	0.58	0.72	0.42	0.59
D1 Coherence 10	0.73	0.62	0.39	0.49
D2 Coherence 25	0.63	0.53	0.41	0.46
D3 Coherence 40	0.77	0.59	0.49	0.62
D4 Coherence 48	0.72	0.49	0.42	0.51
D5 Coherence 50	0.73	0.54	0.42	0.51

Notes: The shaded cells highlight values that exceed a specific threshold, indicating stronger discriminant validity in the corresponding areas.

Figure 1 SLI Structural Model.

Table 3 SLI Structural Model Evaluation

HOC	F2	LOCS	R2	Path Coefficients	T Statistics (|O/STDEV|)	P value
SLI	3.25	Coherence	0.765	0.874	34.167	0.00
	4.274	Semantics	0.81	0.9	44.992	0.00
	2.65	Speech	0.726	0.852	22.135	0.00
	4.653	Syntax	0.823	0.907	48.115	0.00

Table 4 SCD Convergent Validity and Reliability of the Constructs

Construct	Cronbach’s Alpha	Composite Reliability (rho_c)	AVE
E. Inappropriate initiation	0.728	0.821	0.481
F. Stereotyped language	0.702	0.807	0.457
G. Use of context	0.755	0.836	0.506
H. Nonverbal communication	0.722	0.819	0.476

Table 5 SCD Discriminant Validity

Items	Context Use	Nonverbal Com	Stereotyped Lang	Inappropriate Init
E1 Inappropriate 21	0.34	0.32	0.33	0.63
E2 Inappropriate 35	0.50	0.45	0.36	0.75
E3 Inappropriate 37	0.42	0.44	0.46	0.63
E4 Inappropriate 45	0.43	0.50	0.32	0.73
E5 Inappropriate 50	0.45	0.43	0.36	0.73
F1 Stereotyped 11	0.42	0.38	0.69	0.27
F2 Stereotyped 18	0.49	0.30	0.65	0.31
F3 Stereotyped 23	0.55	0.46	0.76	0.54
F4 Stereotyped 30	0.49	0.48	0.67	0.29
F5 Stereotyped 42	0.33	0.39	0.60	0.34
G1 context 15.	0.74	0.48	0.37	0.40
G2 context 19.	0.74	0.36	0.50	0.30
G3 context 28.	0.72	0.49	0.52	0.51
G4 context 34.	0.72	0.52	0.54	0.56
G5 context 41.	0.64	0.52	0.48	0.41
H1 Nonverbal 8	0.42	0.60	0.49	0.35
H2 Nonverbal 14	0.51	0.65	0.45	0.36
H3 Nonverbal 20	0.43	0.70	0.40	0.51
H4 Nonverbal 31	0.44	0.76	0.36	0.45
H5 Nonverbal 39	0.51	0.73	0.38	0.47

Notes: The shaded cells highlight values that exceed a specific threshold, indicating stronger discriminant validity in the corresponding areas.

Figure 2 SCD Structural Model.

Table 6 SCD Structural Model Evaluation

HOC	F2	LOCs	R2	Path Coefficients	T Statistics (|O/STDEV|)	P value
SCD	1.98	Inappropriate initiation	0.66	0.82	19.414	0.00
	2.12	Stereotyped language	0.68	0.82	22.715	0.00
	3.68	Use of context	0.79	0.89	39.506	0.00
	2.75	Nonverbal communication	0.73	0.86	30.596	0.00

Table 7 Impaired Behaviour Convergent Validity and Reliability of the Constructs

Construct	Cronbach’s Alpha	Composite Reliability (rho_c)	(AVE)
I. Social relations	0.76	0.84	0.52
J. Interests	0.64	0.77	0.41

Table 8 Impaired Behavior Discriminant Validity

Items	I Social Relation	J Interests
I1 Social 3	0.61	0.43
I2 Social 7	0.55	0.23
I3 Social 13	0.81	0.34
I4 Social 16	0.82	0.44
I5 Social 33	0.78	0.45
J1 Interests 9	0.12	0.46
J2 Interests 22	0.31	0.66
J3 Interests 26	0.33	0.72
J4 Interests 47	0.52	0.70
J5 Interests 49	0.31	0.62

Notes: The shaded cells highlight values that exceed a specific threshold, indicating stronger discriminant validity in the corresponding areas.

Figure 3 Impaired Behaviour Structural Model.

Table 9 Impaired Behaviour Structural Model Evaluation

HOC	^F2	LOCs	^R2	Path Coefficients	T statistics (|O/STDEV|)	P value
Behaviour	4.78	I Social Relation	0.83	0.91	48.33	0.00
	2.33	J Interests	0.70	0.84	26.249	0.00