  Data from the inelastic scattering of electrons, and of intermediate energy
protons and pions leading to ``stretched'' configuration 4- states near 19 MeV
excitation in 16O as well as from charge exchange (p,n) scattering to an
isobaric analogue (4-) state in 16F have been analyzed to ascertain the degree
of isospin mixing contained within those states and of the amount of
d_{5/2}-p_{3/2}^{-1} particle-hole excitation strength they exhaust. The
electron and proton scattering data have been analyzed using microscopic models
of the structure and reactions, with details constrained by analyses of elastic
scattering data.
