Julie has developed an intervention to improve the relationship between parents and pre-school-aged children. In order to evaluate the effectiveness of her intervention, Julie video records the parents interacting with their children at the end of the study. She has two research assistants watch the videos and rate the level of warmth in the interaction. Julie then correlates the ratings of the raters. She finds a high positive correlation (r = .87) between the two raters. What type of reliability is she examining?
A) test-retest
B) interrater
C) internal
D) construct