This is particularly important
as illustrated in the prior post (
Footnote 8 of the full piece to be exact), because «Teacher effectiveness ratings were based on, in order of importance by the proportion of weight assigned to each indicator [including first and foremost]: (1) scores derived via [this] district - created and purportedly «rigorous» (Dee & Wyckoff, 2013, p. 5) yet invalid (i.e., not having been validated) observational instrument with which teachers are observed five times per year by different folks, but about which no psychometric data were made available (e.g., Kappa
statistics to test for inter-rater consistencies among scores).»