Whether anything unlucky or not happened, as measured in Exercise 16.20

Determine

(a) Whether the variable is measured at the nominal, ordinal, interval, or ratio level, and

(b) Whether it is continuous or discrete.

Data from exercise 16.20

Determine if the study is descriptive, experimental, quasi-experimental, or correlational.
A researcher on superstition decided to investigate if walking under a ladder really brought about bad luck. He took 100 people to his laboratory, one at a time. As each person entered, he flipped a coin. If it turned up Heads, he had the person walk under a ladder; Tails, the person walked next to the ladder. A week later, each participant returned and reported if anything unlucky had happened during the week.