Here’s a bad plan for combining two questions into an index. The bad index planner wants to measure concern about China, and he decides to use these two ANES variables: china_econ: effect of China’s...

Here’s a bad plan for combining two questions into an index. The bad index planner wants to measure concern about China, and he decides to use these two ANES variables: china_econ: effect of China’s economic expansion on U.S.

1. Good

2. Bad

3. No effect

 china_mil: China military threat

1. Major threat

2. Minor threat

 3. Not a threat

He decides simply to add these two questions together as they are. Clearly explain why this is a bad plan.