a researcher is studying the effects of playing chess on memory improvement. he identifies 50 people who play chess and 50 peopl

Question

2 years ago

10

a researcher is studying the effects of playing chess on memory improvement. he identifies 50 people who play chess and 50 peopl

e who do not. each of the 100 people is given a questionnaire designed to determine memory level. none of the 100 people who participated in the study knew they were part of a study. which statement is true.

Mathematics

1 answer:

Sever21 [200] · Answer 1 · 2022-12-13T05:49:52+03:00

Sever21 [200]2 years ago

6 0

Answer:

Observational study

Step-by-step explanation:

Just took the test