Simpson's Paradox makes it clear that it is dangerous to ...

[piesebel]

Simpson's Paradox makes it clear that it is dangerous to __________ information across groups, especially if the subjects or experimental units were not __________ assigned to those groups.
 Fill in the blank(s) with correct word

Question 2

When omitting a third variable masks the relationship between two categorical variables, this phenomenon is called __________.
 Fill in the blank(s) with correct word

[snackralk]

Answer to Question 1

COMBINE; RANDOMLY

Answer to Question 2

SIMPSON'S PARADOX

[piesebel]

TYSM

[nyrave]

Thanks for the timely response, appreciate it