Assess whether the classic study by Van iJzendoorn and Kroonenberg (1988) is Scientific. (8)

Question 1

The meta-analysis included studies using the strange situation procedure with infants and their mothers.

Answer 1

The SSP is a method of gaining observable evidence of attachment behaviour so the inclusion of this method in the analysis means the study has scientific properties.

Question 2

The use of statistical analysis is an evidence-based approach which means research can be considered more scientific.

Answer 2

The researchers carried out statistical analysis using chi square to assess if there were significant deviations in the classification in a given sample, increasing the scientific status of the study.

Question 3

They planned to use Ainsworth (1978) as a baseline sample distribution to measure their findings against.

Answer 3

There was no baseline measure as overall distribution of attachment in the US studies did not match Ainsworth’s, limiting comparability and replication which reduces the scientific status of the study.

Question 4

The data source search identified suitable studies using a strict criterion, such as excluding samples of children over 2 years old.

Answer 4

As the SSP is an observation study there is some subjectivity in the interpretation of the child’s reaction so the studies included in the meta- analysis may lack objectivity which reduces their scientific status.