Experimental Method

Question 1

Aims

Answer 1

A general statement of what researcher tends to study. Developed from theories. Sophsticates theories and based on research.

Question 2

Hypothesis

Answer 2

Statement that states relationship between variables as states by theory.

Question 3

Directional Hypothesis

Answer 3

Researcher makes clear sort of difference that is anticipated between 2 conditions: People who drink energy drinks become more talkative than people who don’t.

Question 4

Non-directional Hypothesis

Answer 4

Just states the difference between the 2 conditions: People who drink energy drinks differ in the terms of talkativenes compared with people who don’t.

Question 5

Doing an experiment

Answer 5

Find two groups and do the experiment. Each group should have different conditions.

Question 6

Deciding which hypothesis to use

Answer 6

Use directional hypothesis when findings of previous research suggest a particular outcome. When no previous research or it contradicts, then it is non directional.

Question 7

IV and DV

Answer 7

IV: what is changed
DV: measures the effect of change
All other variables remain constant as it shouldn’t affect DV and researcher can say that cause of effect on DV was IV alone.

Question 8

Levels of IV

Answer 8

To test effect of IV, we need different experimental conditions: comparison. Control condition and experimental condition.

Question 9

Operationalisation of variables

Answer 9

Ensure variables being investigated are unfuzzy and measurable. Include numbers or specifics.