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Aims



Ideas for research are from:

Direct observation of behaviour

Indirectly through background knowledge band theory

An aim is a reasonably precise idea about what you want to study and what you want to achieve.

This makes it clear whether it is realistic or not.

Doesn't need to be very…

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Null hypothesis:

predicts that what we find in our research just happened by chance

Opposite of the main hypothesis

Written as Ho



Null Hypothesis

It must be included in research because psychologists can never rule out the possibility of results
gained in the investigation are due to chance.

So if…

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Non-Directional Hypothesis

Eating potatoes for dinner alters the amount you sleep.

This hypothesis does not predict a direction, it doesn't predict whether sleep will increase or
decrease.

· Either can happen

· This is also known as a two tailed hypothesis

· Non directional may be used if the researcher…

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Alternative Hypothesis:

Used when we are not really doing an experiment

Used when making observations of behaviours or collecting opinions

Often written as HA.

Null hypothesis:

predicts that what we find in our research just happened by chance

Opposite of the main hypothesis

Written as Ho

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