Crashes and near-crashes have been observed to when teen drivers are reaching for a cell phone and to when they are dialing a cell phone.

An economic term that describes happiness and its hard to measure in numbers is

Using mr smith and his id, identify two potential internal validity threats that might affect the a—b design. tell me how that threat might impact conclusions in the a—b design. note #1: you cannot use maturation (since i already did that one for note #2: there are some mr smith id threats that won’t have much impact in a single case design.

Which georgia shipyard produced 88 liberty ships?