12 terms in 13
13.1: Randomisation
Randomisation is the random allocation of experimental units to different treatment conditions. It ensures that differen
Experimental Design
13.1: Randomisation
Replication means applying each treatment to multiple independent experimental units rather than just once. This allows
Experimental Design
13.1: Randomisation
A control group is a set of experimental units that receive no treatment (or a standard/placebo treatment) and serves as
Experimental Design
13.1: Randomisation
In a blind (or single-blind) trial, participants do not know which group they're in or what treatment they're receiving.
Experimental Design
13.1: Randomisation
A confounding variable is an extraneous variable that is correlated with the treatment variable and affects the response
Experimental Design
13.1: Randomisation
Replication means each treatment is applied to multiple experimental units, not just one. Replication provides: (1) samp
Experimental Design
13.1: Randomisation
In a double blind trial, both participants and experimenters are unaware of treatment assignments. This eliminates bias
Experimental Design
13.2: Blocking
Blocking divides experimental units into homogeneous groups (blocks) based on some characteristic that is known to affec
Experimental Design
13.2: Blocking
Blocking divides experimental units into homogeneous groups (blocks) before randomization. Treatments are randomly assig
Experimental Design
13.3: Randomised Block Design
A randomised block design divides units into blocks based on variables expected to affect the response, then randomly as
Experimental Design
13.3: Randomised Block Design
In a completely randomised design, all units are randomly assigned to treatment groups without blocking. Each unit has e
Experimental Design