Introduktion

Question 1

3 things an experiment must include

Answer 1

1. An independent variable
2. A dependent variable
3. The intent of controlling the rest of the environment

Question 2

Levels

Answer 2

Each variable can have levels (=values). For example if a variable is the groups of participants the levels can be the experiment group and the control group.

Question 3

Conditions

Answer 3

The amount of levels to each variable gives us the amount of conditions by multiplying the levels of the different variables

Question 4

Internal validity

Answer 4

When the value of the dependent variable can surely be attributed to the independent variable. i.e. a measure of how well the experiment was executed. An experiment without confoundings has internal validity.

Question 5

External validity

Answer 5

How well the findings are applicable on a larger scale.

Question 6

Three conditions (villkor) for causal inference

Answer 6

1. Covariation
2. Tidsordning
3. Eliminating other possible explanations (confoundings)

Question 7

Confoundings

Answer 7

If another independent variable is affecting the independent variable you are looking at.

Question 8

Control techniques to eliminate confounding

Answer 8

-Keeping things constant
-Balancing