Glossary

Question 1

An experiment in a controlled environment that can be easily repeated

Answer 1

Laboratory experiment

Question 2

An experiment done in a not controlled environment

Answer 2

Field experiment

Question 3

An experiment with a naturally occurring independent variable

Answer 3

Quasi experiment

Question 4

A variable that changes and are both measured

Answer 4

Independent variable

Question 5

What the experiment is measuring

Answer 5

Dependent variable

Question 6

A variable the experimenter can’t control or something that will effect the results

Answer 6

Extraneous variable

Question 7

What type of experiment is it, is it in a controlled environment or not?

Answer 7

Experimental condition

Question 8

Where a different participant is used for the other IV

Answer 8

Independent measures design

Question 9

Where the same participant is used for both IV’s

Answer 9

Repeated measures design

Question 10

When different participants are used but the experimenter tries to match them in age and similarities

Answer 10

Matched group designs

Question 11

Everything that stays the same each time the experiment is ran

Answer 11

Controls

Question 12

If the same participant is used again and they will perform better as the done the same thing before

Answer 12

Order effects

Question 13

Where a participant is aware of the true purpose of the experiment and acts differently to what they would naturally act

Answer 13

Demand characteristics

Question 14

Where the participant doesn’t know what group they are in

Answer 14

Single blind

Question 15

Where the experimenter and participant doesn’t know what group the participant is in

Answer 15

Double blind

Question 16

Where someone states there will always be a significant change

Answer 16

Alternative hypothesis

Question 17

Where the hypothesis states that there will be no effect of the IV’s on the dependent variable

Answer 17

Null hypothesis

Question 18

An hypothesis with a direction

Answer 18

Two tailed hypothesis

Question 19

A hypothesis which is simple without a direction

Answer 19

One tailed hypothesis

Question 20

What type of participants the experimenter wants and will try to obtain

Answer 20

Target population

Question 21

Where the experimenter will go and ask people specifically if they want to take part in the experiment

Answer 21

Opportunity sampling

Question 22

Where the experimenters put out a poster or statement and the participants will decide to come

Answer 22

Self selected sampling

Question 23

Where random people are asked by the experimenter not based on the target population

Answer 23

Random sample

Question 24

Where the experimenter asks the participants to ask their friends and family and them to do the same so the chain continues

Answer 24

Snowball sample

Question 25

Guidelines the experimenters should follow to be considered ethical

Answer 25

Ethical guidelines

Question 26

Data in a numerical form

Answer 26

Quantitative data

Question 27

Data in a written worded form

Answer 27

Qualitative data

Question 28

Mean, median, mode

Answer 28

Measures of central tendency

Question 29

All the scores added up and divided by the amount of scores

Answer 29

Mean

Question 30

All the scores in increasing order and the middle number of all of them

Answer 30

Median

Question 31

The most common score

Answer 31

Mode

Question 32

Range, variance, standard deviation

Answer 32

Measures of dispersion

Question 33

The highest score minus the lowest score

Answer 33

Range

Question 34

The mean - the score and then squared and added together - the amount of participants - 1

Answer 34

Variance

Question 35

Standard deviation

Answer 35

Square root of a variance

Question 36

No manipulation of the independent variable

Answer 36

Control condition

Question 37

When the experimenter subconsciously helps the participant and is bias

Answer 37

Researcher effects

Question 38

Sample is divided to half and one half completing the 2 conditions in order and the other half will do the other half in reverse order

Answer 38

Counter balancing