It would be great to have more good research examining the long - term effects of interventions. (skepticalob.com)
The success of previous studies showing beneficial effects of intervention up to 3 years have been attributed to a combined programme of enhanced social support and targeted developmental education. (adc.bmj.com)
Nine of the studies measured effects of their intervention on self - esteem, self - efficacy or social competence, using 12 measures to assess this. (pediatrics.aappublications.org)