I am looking for an observational tool that can be applied to video-taped observations of parents and their infants (2 to 24 months) interacting during free-play in the home.
Prime, H., Browne, D., Akbari, E., Wade, M., Madigan, S., & Jenkins, J. M. (2014). The development of a measure of maternal cognitive sensitivity appropriate for use in primary care health settings. Journal of Child Psychology and Psychiatry.
check out the PICCOLO (Parenting Interactions with Children:
Checklist of Observations Linked to Outcomes) from Utah, developed by Roggman, Cook, Innocenti, Jump & Christiansen. Our home visiting consultants (in Canada) have found it useful.
The Lausanne Trilog Play is also very interesting to observe parents-child interactions (10-15 minutes). A wonderful method that we use in my service (University of Liège).
Favez, N., Lavanchy, C., Scaiola, Tissot, H., Darwiche, J., Frascarolo, F. (2010). The Family Alliance Assessment Scales: Steps Toward Validity and Reliability of an Observational Assessment Tool for Early Family Interactions. Journal of Child Family Study.