Scientific Processes: Aims, Hypothesis and Variables

Aims
This is a general statement of what the researcher intends to investigate. Example: To investigate whether energy drinks affects the talkativeness of those who drink it.
1 of 10
Hypothesis
This is a clear, precise, testable statement that states the relationship between the variables to be investigated.
2 of 10
Experimental Hypothesis
This states that there is a significant difference between variables.
3 of 10
Directional Hypothesis
This states the direction of the difference. e.g higher or lower. Psychologists tend to use this hypothesis when the results of the previous research suggests a particular outcome.
4 of 10
Non-Directional Hypothesis
This doesn't state the direction of the difference. Psychologists use this hypothesis when there is no previous research or findings from research are contradictory.
5 of 10
Null Hypothesis
This states that there is no significant difference between variables. Example: There will be no difference in the number of words spoken in a minute for those who drink 500ml of energy drink compared to those who drink 500ml of water.
6 of 10
Variable
Is anything that is open to change.
7 of 10
Independent Variable (IV)
This is something that the researcher changes or manipulates. Example: The amount of energy drink,the amount of water.
8 of 10
Dependent Variable (DV)
This is something the researcher measures, to see if there has been a change. Example: The talkativeness measured in number of words spoken per minute.
9 of 10
Operationalisation
Clearly defining variables in terms of how they are measured. Example: ml of energy drink, number of words spoke in a minute.
10 of 10

Other cards in this set

Card 2

Front

This is a clear, precise, testable statement that states the relationship between the variables to be investigated.

Back

Hypothesis

Card 3

Front

This states that there is a significant difference between variables.

Back

Preview of the back of card 3

Card 4

Front

This states the direction of the difference. e.g higher or lower. Psychologists tend to use this hypothesis when the results of the previous research suggests a particular outcome.

Back

Preview of the back of card 4

Card 5

Front

This doesn't state the direction of the difference. Psychologists use this hypothesis when there is no previous research or findings from research are contradictory.

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Psychology resources:

See all Psychology resources »See all Research methods and techniques resources »