The Adoption Communication Scale (ACS) is a 28-item childreport instrument used to assess adoptees' perception of communication openness in the family. The aim was to develop a Spanish language version of the scale (ACS-S) and to assess the instrument's psychometric properties in a sample of 55 adopted adolescents. The ACS-S was found to have high internal consistency (α = .93) and moderately high testretest stability (.68). An exploratory factorial analysis yielded two factors, the first loaded on satisfaction with emotional communication items and the second encompassing satisfaction with the completeness of the information offered by the parents. These factors are coherent with the theory underlying the scale. The total ACS-S score was significantly positively correlated with adolescent Global Satisfaction with Openness as measured by a Visual Analogue Scale. The ACS-S scale appears to be a valid tool in assessing communication openness in Spanish adopted adolescents.

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