Answer Happy

Question 14 (1 point) A cross-sectional study examined the relationship between suburban green space (access to parks etc.) and the suburban mortality rate. In this situation, which of the following is a particular concern regarding the degree to which the association identifies a real causal effect of access to green space on mortality risk? a) Associations at the suburban level may not be consistent at the individual level. b) Measurement of green space is difficult at the suburban level. c) The temporal patterning of cause and effect is difficult to ascertain. d) It may be difficult to achieve a satisfactory sample size.