Answer:
Explanation:
1. It was invented to fit a language that previously used a borrowed writing system.
2. South Korea divides itself politically into nine provinces and six special cities.
3. The Korean peninsula is about 600 miles long, but at its shortest width (near the DMZ), it is only 120 miles from coast to coast.
Hope this helps! <3
Answer: Wendy did not use random assignment
Explanation: Wendy's failure to randomly assign participants or subject to his research will pose a threat to the internal validity of his study. The internal validity of a study simply refers to the structure of an experiment and it's trustworthiness in establishing causal relationship between the applied treatment used a study and the observed outcome. Wendy's decision to ignore random assignment and opt for a manual assignment of subject to each treatment will pose a threat to the structure of his study and hence the establishment of a causal relationship between the treatment t and outcome of the study.