Q29 Hypothesis Hurricane Katrina
Hurricane Katrina devastated New Orleans. Jaycox et al (2010) evaluated children’s mental
health following Hurricane Katrina. Specifically, they measured the effect of an intervention on
post-traumatic stress disorder (PTSD)among 57 children who had witnessed Hurricane Katrina.
At the start of the intervention the children’s average PTSD score was 22.0. The end of the
intervention the children’s average PTSD score was 15.8 resulting in an average difference of
6.2. The standard deviation of