T2: Experimental Design |||

Question 1

What do multiple IV do (why are they good)?

Answer 1

Allows determination of how the IV interact with each other as well as the DV - the relationship between one IV and the DV may change on different levels of the IV

Question 2

When you collect data in all combinations of your IV the design is __ and it is a __

Answer 2

Fully crossed AND factorial design

eg gender and meal size

Question 3

BSD in a factorial design…

Answer 3

All IVs are BSD IVs and random assignment is used

Question 4

WSD in a factorial design…

Answer 4

ALl IVs are WSD IVs and each part receives each possible condition/level of the IV

Question 5

Mixed Design in a factorial design…

Answer 5

One IV is WSD and one is BSD and each part receives each level of the WSD and one level of BSD

Question 6

What are the two effects we get in a factorial design?

Answer 6

Main - the effects of a single IV (ignore other IVs)

Interaction - the effects of one IV on the DV taking into account other IVs