what tools are used to assess it?
Disturbances of Attachment Interview (DAI), the Strange Situation Procedure, and a few other
Reactive attachment disorder
More recent research also uses the Disturbances of Attachment Interview (DAI) developed by Smyke and Zeanah (1999). 
what does rad stand for in mental health Reactive attachment disorder what are some of its signs? Infants may present with non-organic failure to thrive and display abnormal responsiveness to stimuli. and symptoms? Malnutrition or dehydration, while serum growth hormone levels will be normal or elevated. any causes? Genetic defects, problematic history of care and social relationships, or abuse. how is it diagnosed? The British Association for Adoption and Fostering says that any assessment must include a comprehensive evaluation of the child's individual and family history. what are the effects of the first symptom? It increases the risk of infection and infectious disease, and moderate malnutrition weakens every part of the immune system. can you please define it? It refers to undernutrition and is divided into two different types, SAM and MAM. what is kwashiorkor? It means "the sickness the older one gets when the next baby is born," as this is when the older child is deprived of breast feeding and weaned to a diet composed largely of carbohydrates. what is marasmus? It is caused by an inadequate intake of protein and energy. how is the second symptom treated? For minor dehydration the treatment is drinking water and stopping fluid loss. what can be done to prevent it? For routine activities, thirst is normally an adequate guide to maintain proper hydration. how is the original disorder treated? Interventions may include psychosocial support services for the family unit,  psychotherapeutic interventions, family therapy, etc. what is the prognosis? The AACAP guidelines state that children with RAD are presumed to have grossly disturbed internal models for relating to others. can you please tell me what research has been done on it? Some research indicates there may be a significant overlap between behaviors of the inhibited form of RAD or DAD and aspects of disorganized attachment where there is an identified attachment figure.
wiki:24497143
Reactive attachment disorder [SEP] Assessment tools
More recent research also uses the Disturbances of Attachment Interview (DAI) developed by Smyke and Zeanah (1999). The DAI is a semi-structured interview designed to be administered by clinicians to caregivers. It covers 12 items, namely "having a discriminated, preferred adult", "seeking comfort when distressed", "responding to comfort when offered", "social and emotional reciprocity", "emotional regulation", "checking back after venturing away from the care giver", "reticence with unfamiliar adults", "willingness to go off with relative strangers", "self-endangering behavior", "excessive clinging", "vigilance/hypercompliance" and "role reversal". This method is designed to pick up not only RAD but also the proposed new alternative categories of disorders of attachment.