Table 2 Outcome measures

Interpretation bias

Interpretation speed of secure and insecure scenario resolutions

Difference between secure and insecure resolutions

Mean reaction time to secure and insecure probes

x

Secure interpretation bias

Change from pre-intervention to post-intervention recognition task

Mean rating of secure interpretations

x

x

Insecure interpretation bias

Change from pre-intervention to post-intervention recognition task

Mean rating of insecure interpretations

x

x

Trust

PIML Trust subscale

Change from pre-intervention to post-intervention

Mean rating of trust items

x

x

Child’s attachment-related behavior

Observation of the quality of the approach of child towards mother during a puzzle task with the MCAM scoring scales

Change from pre-intervention to post-intervention

Frequency of child behaviors

x

x

Mother-child interactional coherence

Observation of positive parent behavior and positive child behavior (with the MCAM scales) during a puzzle task

Change from pre-intervention to post-intervention

Jaccard Index indicating the occurrence of parent behavior at time point t − 1 and child behavior at time point t and vice versa (i.e., indicating the occurrence of child behavior at time point t − 1 and parent behavior at time point t)

x

x