. 2014 Aug 13;180(6):626–635. doi: 10.1093/aje/kwu180

Table 3.

Selected Ecometric and Spatial Properties of a Measure of Neighborhood Physical Disorder Computed From 1,826 Block Faces in 4 US Cities Using Google Street View Imagery Dating From 2007–2011

Location	No. of Block Faces Audited	Cronbach's α for Raw Measures	Internal Consistency of IRT Model	Median Level of Latent Disorder, z Score^a (IQR^b)	Moran's I	Kriging Parameter			Cross-Validation Result
Location	No. of Block Faces Audited	Cronbach's α for Raw Measures	Internal Consistency of IRT Model	Median Level of Latent Disorder, z Score^a (IQR^b)	Moran's I	b (Nugget)	Φ (Range)	c (Sill –Nugget)	Residual Mean (SD)	Median Absolute Deviation
New York, NY	532	0.48	0.86	0.07 (–0.55 to 0.42)	0.041	0.19	5,000	0.14	−0.002 (0.54)	0.40
Philadelphia, PA	503	0.69	0.89	0.07 (–0.69 to 0.70)	0.092	0.35	10,000	0.30	−0.003 (0.66)	0.46
Detroit, MI	502	0.63	0.89	0.47 (–0.21 to 1.10)	0.063	0.18	3,000	0.52	0.001 (0.77)	0.53
San Jose, CA	289	0.48	0.87	−0.55 (–0.69 to 0.00)	0.030	0.09	1,000	0.27	−0.002 (0.57)	0.35
Overall	1,826	0.62	0.93	0.07 (–0.69 to 0.51)					−0.002 (0.65)	0.45

Abbreviations: CA, California; IQR, interquartile range; IRT, item response theory; MI, Michigan; NY, New York; PA, Pennsylvania; SD, standard deviation.

^a z scores were calculated from the posterior distribution of the disorder IRT model.

^b 25th–75th percentiles.