*Limitations and Future Directions*

This research has limitations that should be considered when interpreting the results. Although the study tested the instrument using an adequate sample in terms of size (*n* = 153) and socioeconomic variability, thus ensuring its statistical power, the numbers were not sufficient to provide normative data, and the age range of the children was limited

to 18-month-old toddlers. A large study would be necessary for RIFL-P standardization and, therefore, for its clinical use.

The significance and novelty of this study was the development of a Brazilian Portuguese version of a psychometrically sound measure of responsive caregiving that requires little training (free, online), uses a short video clip of caregiver–child interaction (5 min), and takes little time to code (approximately 3 min per interaction). Thus, the adapted RIFL-P instrument represents a suitable measure for application in large-scale studies in Brazil to potentially impact policy, practice, and research.
