Performance Indicators in Primary Schools (PIPS), is conducted at the beginning and end of the kindergarten year to assess children's literacy and numeracy skills. (education.act.gov.au)
Their focus is on the relationship between end of kindergarten test scores and adult earnings, but it is reasonable to assume that similar relationships would hold between beginning of kindergarten test scores and adult earnings. (investinginkids.net)
Things like having kids be able to read proficiently at the end of kindergarten, things that are developmentally inconceivable for a lot of kids. (kidsinthehouse.com)