Issues asking motherss to be observers they ar unlikely to be objective observers, they might be biased in terms of what they're noticed when their baby was showing signs of anxiety, they may have misremembered it. Means that even if babies bheaved naturally their behaviour may have not been accurately recorded Another limitation- the validity of the measure they sued to assess attachment in the asocial stage. Young babies have poor co- ordination and are family immobile if babies <2 months felt anxiety in everday situations, they may show this in quite hard-to-observe ways, difficult for mothes to obsereve and report in this age group, means babies may be quite social but because of forward methods, they appear to be asocial.