Before revision: This is the principle that in an instance where building-block two above (controllable indictors) do not reach to the top of the outcomes model ( building-block one above) , the only way in which more information can be obtained about whether changes in high-level indicators can be attributed to an intervention is building-block five (impact evaluation) .
After revision: This is the principle that in an instance where building-block two (controllable indicators) does not connect to building block one of the outcomes model , then building-block five (impact evaluation) offers the only way to obtain more information about whether changes in high-level indicators can be attributed to an intervention .