AO3

• Validity

  P- High in internal validity

  E-High control over extraneous variables, could’ve affected the infant’s reaction to the caregiver

  E-Still face experiment- babies were brought into a controlled environment to minimise distractions, the children’s response was filmed and identified by independent observers to reduce the likelihood of investigator’s effect

  C - Genuine - only caregiver influenced behaviour
• Replicability

  P-Limitation- results haven't been replicated

  E- Le Vine(1994) found that Kenyan mothers have less interactions with infants yet their infants develop a high proportion of secure attachments

  E- Cultural differences as the amount of interactions differ

  C-Decreases credibility- not consistently shown
• Ethical implications

  P- Limitation- make mothers feel bad for returning to work

  E- Research highlights the importance of increased interactions

  E- Mothers who work may not have as many interactions as those who don’t

  C- Problematic- best financial decision
• Real world applications

  P-Strength- has led to intervention that strengthens attachment

  E-Baby wearing- make it easier for parents to read cues such as hunger/tiredness; Baby massage-respond through physical touch

  E-Baby sign language via interactional synchrony- increased insight

  C-Beneficial for working mums