Reply to I just scooped the DCPCSB

Forum Index » DC Public and Public Charter Schools

Reply to "I just scooped the DCPCSB - 2018 tiers"

Subject:

Emoticons





More smilies

Text Color: Font: Close Marks

[quote=Anonymous][quote=Anonymous][quote=Anonymous]

As discussed above, students have a growth percentile calculated against similarly scoring students, not all kids in their age group. So there is no inherent advantage in having any specific group at the school in terms of the growth score. There is, of course, for overall testing levels, which is 35% of the PMF.[/quote]

Of course there is an inherent advantage. Read the Equity Report. White students in the district have an average growth score of 65. Black students have average growth of 46. This disparity in growth remains true even in "high performing" schools. [/quote]

The listing in the equity reports compares average growth for white students to all students in DC.  Same for the listing for black students, Hispanic, etc.  Each group is being compared to the entire city.

The listing for each school in the PMF is calculated by doing a "Student Growth Percentile" for each individual student.  The system matches that student with a cohort of students who scored similarly on the test last year.  That student's growth is then compared to the average growth of that cohort, NOT the average growth across the entire city.  The individual Student Growth Percentiles are then averaged out to produce the entire school's Median Growth Percentile.

Therefore, the calculation is a true test of a school's ability to help a student grow, because it is comparing that student to similarly scoring cohort.  Now, you can get into all sorts of discussions about what tests are testing, the appropriateness of the tests, cultural bias, etc.  But the way they are measuring a school's Median Growth Percentile is internally consistent.

And again, this is separate from the score for testing achievement, which is 35% of a school's overall score.  That is, no doubt, tied almost directly to the overall socioeconomic makeup of the student body.[/quote]

Options

	Disable HTML in this message
	Disable BB Code in this message
	Disable smilies in this message

Review message

Search Recent Topics Hottest Topics