Examlex
If a cell contains =$N$21 and two new columns are inserted in front of column N and three rows are inserted above row 21, what happens to the =$N$21?
Random Assignment
The process of allocating subjects or experimental units to different groups in an experiment using random methods, to ensure that each group is similar at the start.
Double Blind
A study or experiment design in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias.
Stratifying
The process of dividing a population or sample into subgroups, known as strata, to ensure that research or analysis is more accurate and reflective of the whole.
Blocking
A design technique in experiments that groups units with similar characteristics together to isolate the variable of interest and reduce variation.
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