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beks73 [17]
4 years ago
7

The campus safety committee has asked Professor Ibrahim to study bicycling on his campus. He trains two observers and has them o

bserve the number of cyclists and their safety at various points around campus. Initially, the observers can't agree about what is dangerous behavior. Professor Ibrahim refines his codebooks to clearly define the rating scales and retrains the observers. What is he addressing by doing this?
Social Studies
1 answer:
stepan [7]4 years ago
3 0

Question options:

reactivity

selection bias

external validity

the reliability of the measurement

Answer:

the reliability of the measurement

Explanation:

Good Observations are more reliable and valid. Professor Ibrahim's refinement to define rating scales and be sure observers(seeing how they disagree on their observations and how this could affect research) are following this ensures judgement based on data collected from these individuals(observers) are more reliable, which will ensure construct validity.

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substitute goods.

Explanation:

The concept of good substitution is an important subject of the study of microeconomics and allows predictions about price behavior and demand for certain goods. In short, substitute goods may be regarded as competing goods for the same consumer. Let's say there are two goods, good A and good B, and that they are substitutes. This means that the consumer will choose to consume either good A or good B, but never both at the same time. Substitute goods are the exact opposite of complementary goods.

The most common substitute good example is beef and chicken. These goods are so substitutes that a change in the price of one of them tends to influence demand for the other good. Another example is the consumption of ramen noodles and boxed macaroni and cheese, which are often eaten by college students but are abandoned by other products once students finish school and start their careers.

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Explanation:

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