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Table 4.

Impacts on the Number and Type of Observations

	Control Mean	Treatment — Control Difference (SE)	N (Teachers/Administrators)
Teacher survey
Teacher reported number of in-person observations supervisor did	4.42	−1.13^***	392
		(0.37)
Teacher reported hours supervisor spent doing in-person observations	5.24	−1.58^***	389
		(0.32)
Administrator survey
Administrator reported average number of in-person observations	4.35	−0.04	115
		(0.54)
Administrator reported average number of video observations	0.31	2.55^***	95
		(0.17)
Administrator reported doing any video observation	0.13	0.82^***	95
		(0.06)

	Control Mean	Treatment — Control Difference (SE)	N (Teachers/Administrators)
Teacher survey
Teacher reported number of in-person observations supervisor did	4.42	−1.13^***	392
		(0.37)
Teacher reported hours supervisor spent doing in-person observations	5.24	−1.58^***	389
		(0.32)
Administrator survey
Administrator reported average number of in-person observations	4.35	−0.04	115
		(0.54)
Administrator reported average number of video observations	0.31	2.55^***	95
		(0.17)
Administrator reported doing any video observation	0.13	0.82^***	95
		(0.06)

Notes: The adjusted difference between control and treatment is the result of a regression of the dependent variable against fixed effects for randomization strata, a treatment indicator, and an indicator for whether the school is an elementary or middle school. Standard errors (SE) are reported in parentheses, and allow for clustering within school. A Bonferroni correction for five hypothesis tests changes the significance of the first result from the 99 percent level to the 95 percent level. Both the Sidak and Holm-Bonferroni corrections yield identical results.

^***Significant at the 99% level.

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