Top answers

What are the characteristics of a single-blind study?

They are experiments in which the subjects are unaware of whether they are recieving a real or fake drug treatment. As a result, they help reduce bias and placebo effects.
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Answered by Seanan M. • Psychology tutor
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Why can longitudinal studies be problematic?

Longitudinal studies are those which are carried out over a long period of time. Longitudinal studies can be problematic because, over time, participants may drop out. This is an issue because it leaves the ...
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Answered by Hannah N. • Psychology tutor
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What is the difference between the biological and behavioural psychological approaches?

The biological and behavioural views of psychology allow for two different approaches to studying the subject and often link to the nature-nurture debate. The biological psychological approach is linked with...
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Answered by Emily H. • Psychology tutor
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What’s the difference between validity and reliability?

Research in psychology needs to produce results that are both reliable and valid . In order to do so, also the methods (measures) used in the studies need to reliable and valid. Reliability refers to how con...
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Answered by Sheila C. • Psychology tutor
42730 Views

What are some methods of control in experiments?

Elimination: Removal of the extraneous variable (e.g. noise) Constancy: Keeping the extraneous variable constant between two or more conditions (e.g. equal levels of noise) Counter-balancing: Controlling var...
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Answered by Alice P. • Psychology tutor
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