models/classes/ExtendedStateService.php
public function getCatValue($testSessionId, $assessmentSectionId, $key)
    {
        $extendedState = $this->getExtendedState($testSessionId);
        return $extendedState->getCatValue($assessmentSectionId, $key);
    }
public function getCatValue($testSessionId, $assessmentSectionId, $key)
    {
        $extendedState = $this->getExtendedState($testSessionId);
        return $extendedState->getCatValue($assessmentSectionId, $key);
    }
Get a CAT Value

Get a CAT value from the Extended State.

@param string $testSessionId
@param string $assessmentSectionId
@param string $key
@return string
@throws \common_Exception