:( , studying children from Romanian orphanages might have introduced different confounding variables.
E: The poor quality of care in these institutions, lacking intellectual stimulation and comfort, could have contributed to observed harmful effects.
E: This suggests that negative outcomes seen in Romanian orphan studies might be attributed more to poor institutional care quality rather than institutional care itself.
L: Therefore, this implies that caution is needed in attributing observed effects solely to institutional care without considering other variables.