Relationship between advertisement-recruited and street-recruited participants' ratings of suburban 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 = -0.63 [-2.08 - 0.81] + 1.05 [0.88 - 1.22] ×, [95% confidence interval]) did not deviate significantly from the line of identity. Pearson's correlation was 0.96.