3.5 & 3.6 Daily Video

Question 1

Another Variable that is related to explanatory (independent) variable and influence the response variable

Answer 1

Confounding Variables

Question 2

May create a false perception of association between the two

Answer 2

Confounding Variables

Question 3

Treatment intentionally imposed on experimental units

Answer 3

Experiment

Question 4

May help predict a change in the response variable

Answer 4

Explanatory Variables (Factor)

Question 5

Used to measure the outcome of a study

Answer 5

Response Variable

Question 6

Cannot determine causation due to possible confounding variables

Answer 6

Observational Studies

Question 7

4 qualities of a well-designed experiment

Answer 7

-compares at least 2 treatment groups (one can be control)
-random assignment of treatments
-replicate experimental units
-control of potential confounding variables

Question 8

Tends to balance the effects of potential uncontrolled variables so that different responses can be attributed to treatments

Answer 8

Randomized

Question 9

Ensures that unites within each block are similar with regards to blocking

Answer 9

Randomized Block Design

Question 10

Is not randomly done

Answer 10

Blocking

Question 11

Fake treatment that is similar to the treatments being tested

Answer 11

Placebo

Question 12

Subject does not know which treatment that are receiving by the researchers do

Answer 12

Single-Blind Study

Question 13

Neither the subjects nor researchers who interact with subjects are aware of the treatments being administered

Answer 13

Double-Blind Study

Question 14

Special type of special designs

Answer 14

Matched Pair Designs

Question 15

Requires that multiple experimental units receive the same treatment

Answer 15

Replication