Discuss the possible threats to internal validity

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Reference no: EM131322958

Imagine that your town or city has increased its nighttime police patrols to reduce crime.

Design two quasi-experiments to determine whether this intervention has been effective, one that uses some variation of a nonequivalent control group design and one that uses some variation of a time series design.

For each design, discuss the possible threats to internal validity, as well as the ways in which the design could be patched up to provide more conclusive evidence.

Reference no: EM131322958

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