limitation: poor evidence for the asocial stage
point: limitation - validity of measures used to measure attachment in asocial stage
evidence: babies have poor co-ordination/fairly immobile; if baby under 2 months old felt anxiety: display in subtle, hard-to-interpret ways
explanation: limitation b/c means it's hard for mothers to observe this behaviour and report it to the researchers for babies in this age group. babies may have been very social but deemed asocial due to flawed methods.
link: weakness - poor evidence b/c low validity.