Table 2.

Summary descriptions of included studies.

Author (year) [ref]	Country	Participants (n)	Average Age (Years)	Percent Male	Intervention Length (Weeks)	Hours per Week	Primary Implementer	Parent Coaching	Group	Fidelity	Blind Assessors	Random Assignment
Dawson (2010) [25]	USA	48	1.95	72	104	20	Professional	yes	no	85%	yes	yes
Rogers (2012) [26]	USA	98	1.75	77.55	12	1	Parent	yes	no	75%	yes	yes
Rogers (2014) [13]	USA	11	0.75	65.63	18	1	Parent	yes	no	91%	yes	no
Vivanti (2014) [23]	Australia	57	3.4	87.72	52	15	Professional	yes	yes	92%	no	no
Fox (2018) [21]	USA	10	2.73	70	6	3	Parent	yes	yes		NA	yes
Zhou (2018) [22]	China	43	2.21	88.37	26	1.5	Parent	yes	mix	80%	yes	no
Xu (2018) [27]	China	40	3.77	88.75	8	5	Professional	yes	no	85%	yes	yes
Colombi (2018) [28]	Italy	92	2.76		24	6	Professional	no	no	80% *	no	no
Vinen (2018) [24]	USA	59	3.11	88.1	156 †	15–20	Professional	yes	yes	80% *	yes	no
Vismara (2018) [29]	USA	30	2.46	70.83	12	1.5	Parent	yes	no		yes	yes
Holzinger (2019) [30]	Austria	16	3.62	100	52	4.6	Professional	no	no	80% *	no	no
Rogers (2019) [31]	USA	118	1.72	77.97	116	16	Professional	yes	no	84%	yes	yes

Note.^† Indicates an average duration. * Indicates a minimum level of fidelity.