I am looking to for an observational global coding scheme with good psychometric properties that both indexes positive (sensitivity, warmth) AND negative (intrusiveness, harsh control, insensitivity) dimensions of parenting that would be appropriate for use with children 1-4 years old. Coders would be undergraduate research assistants with assessment experience but no graduate training in coding parent-child interactions from video. I am very interested in opinions about the pros and cons of different coding schemes.