experiments Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is an independant group

A

There are 2 groups in 2 different conditions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the advantages of an experimental design

A
  • Fewer demand characteristics - participants may only know their condition
  • No order effects - only take part in one condition, so don’t get bored
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the disadvantages of an experimental design

A
  • More participants needed
  • Individual differences as the people taking part in each condition are different - one group might simply be better at that task
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is a matched pair

A

Two separate groups, but this time they are matched into pairs for certain qualities such as age or intelligence. One of each pair takes part part in condition a and the other takes part in condition b

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the advantages of matched pairs

A
  • No order effects
  • Control for individual differences can be more sure in IV caused differences in DV rather than big differences between the two groups
    yeahhh I’m not going to lie to you i don’t think that makes sense, but u two are smart I’m sure u can figure it out :D
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the nature and use of field experiment

A

Take place in a natural environment; outside the lab

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Give an example of a field experiment you have studied

A

Bickman

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are some advantages of a field experiment

A
  • Less artificial than a lab; represents reality
  • Can be completed in natural environments; avoids participant affects
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are some weaknesses of a field experiment

A
  • Extraneous variables less easy to control, therefore less able to show cause and effect
  • Ethical issues - participants unlikely to know they are being studied
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the nature and use of a laboratory experiment

A
  • Controlled artificial environment
  • Independent variable is manipulated
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are some advantages of laboratory experiment

A
  • Controlled environment - minises problems with extraneous variables
  • Can be easily repeated; high in reliability
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are some weaknesses of laboratory experiments

A
  • Artificial environment (low mundane realism)
  • Participants may behave differently than normal or to be affected by the environment
  • It therefore may lack generalizability
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the nature and use of natural experiments

A

Independent variable not manipulated taking advantage of naturally occurring event

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Give some advantages of natural experiments

A
  • High in ecological validity (represents real-life experiences and provides the opportunity for research)
  • Enables psychologists to study ‘real problems’
  • Few ethical issues
  • Objective research method
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Give some disadvantages of natural experiments

A
  • A naturally occurring event may happen very rarely which limits the opportunity to investigate
  • Many extraneous variables
  • Participants are not randomly allocated to biased conditions
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Give the nature and use of quasi experiments

A

The IV is a naturally exisiting charactertstic between people and has not been changed by anyone/anything - quasi means something is not quite real; and so are not considered real experiments

17
Q

Give some advantages of quasi experiments

A
  • Carried out under lab conditions so therefore high in controls
  • Enables psychologists to study ‘real problems’
18
Q

Give some weaknesses of quasi-experiments

A
  • Participants cannot be randomly allocated to conditions therefore there may be confounding variables
  • We therefore cannot say cause and effect