What is a pilot study?
A small scale trial run which takes place before the actual investigation
Explain the screw you effect?
When participants rebel against the experimenters
What is the please you effect?
When participants want to please the experimenters
What are the aims of a pilot study?
To identify any potential issues so that these can be adjusted before the actual investigation takes place
What is a blind trial?
When one parties in the trial are kept unaware of which procedure participants have been assigned to
( what treatment has been assigned to which patient)
What is a double blind trial?
When none of the parties know which patient has the treatment
What is an advantage of using a blind trial?
Removes bias :
What can a bias affect?
Requirement and allocation , care and attitudes. Assessments