Relationship between advertisement-recruited and street-recruited participants' ratings of inner urban route environments. The mean values are expressed as sex-neutral means. The solid diagonal line represents the line of identity (slope = 1.0 and y-intercept = 0.0). The dotted line represents the linear regression line. The regression line (y = 0.59 [-0.30 - 1.49] + 0.90 [0.80 - 1.01] ×, [95% confidence interval]) did not deviate significantly from the line of identity. Pearson's correlation was 0.98.