Title: Developing Person through Lifespan (paper), Stidyguide, Coast Telecourse Studyguide, Journey Through the Life Span DVD and Journey Through the Life. Product Type: Books > Subjects > Health, Fitness & Dieting > Psychology & Counseling
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.