This article assesses the validity and reliability of the approach use
d to measure community mobilization in the Seattle Minority Youth Heal
th Project(MY Health), a neighborhood-based-program to prevent drug us
e, violence, teen pregnancy, and sexually transmitted diseases (STDs).
Two constructs were measured: neighborhood cooperation in solving pro
blems, and sense of pride and identification with the neighborhood. Th
e convergent validity of the measurement approach was assessed by comp
aring several independent measures of community mobilization generated
from surveys of hey neighborhood leaders, youth and parents. For the
neighborhood cooperation construct, correlations were uniformly positi
ve across measures from different surveys and statistically significan
t about a quarter of the time. The correlations for the neighborhood p
ride construct were weaker and generally not statistically significant
. Interrater reliability was low for all of the surveys, possibly refl
ecting varying ideas about what community mobilization meant among sur
vey respondents.