Jan 17 2-2 BW ata Collection and Experimental Design

What is the purpose of blinding in an experiment?

• To minimize the placebo effect

• To repeat the experiment using a large group of subjects

• To randomly assign subjects to treatment groups

• To pair up subjects according to similarity

What is the key element of experimental design that involves randomly assigning subjects to different treatment groups?

• Completely randomized design

• Replication

• Randomized block design

• Matched-Pairs Design

What is the placebo effect in an experiment?

• When a subject reacts favorably to a fake treatment

• When an experimenter cannot tell the difference between the effects of different factors

• When subjects are paired up according to similarity

• When subjects are randomly assigned to treatment groups

What is the purpose of double-blind experiment?

• To minimize the placebo effect

• To repeat the experiment using a large group of subjects

• To randomly assign subjects to treatment groups

• Neither the subject nor the experimenter knows if the subject is receiving a treatment or a placebo

What is the process of randomly assigning subjects to different treatment groups called?

• Replication

• Completely randomized design

• Randomized block design

• Matched-Pairs Design

What is the purpose of replication in an experiment?

• To minimize the placebo effect

• To randomly assign subjects to treatment groups

• To repeat the experiment using a large group of subjects

• To pair up subjects according to similarity

What is the technique where the subject does not know whether he or she is receiving a treatment or a placebo?

• Blinding

• Randomization

• Confounding Variable

• Placebo Effect

What is the number of subjects in a study called?

• Randomization

• Confounding Variable

• Sample Size

• Replication

What is the repetition of an experiment using a large group of subjects called?

• Randomization

• Sample Size

• Replication

• Confounding Variable

What is the design where subjects are paired up according to a similarity and then randomly assigned to different treatments?

• Replication

• Completely randomized design

• Randomized block design

• Matched-Pairs Design