Cognitive Research

Question 1

One tailed

Answer 1

One is better than the other

Question 2

Two tailed hypothesis

Answer 2

States there will be a difference

Question 3

Null hypothesis

Answer 3

No difference

Question 4

What is an experiment

Answer 4

Investigation which a hypothesis is scientifically tested
We have independent dependent and controlled variable

Question 5

What is a lab experiment

Answer 5

Controlled environment

Question 6

Field experiment

Answer 6

Everyday surroundings

Question 7

Strength and weakness of lab experiments

Answer 7

Easier to replicate because of highly standardised

Precise control of extraneous and independent variable

Low Mundane realism unnatural

Demand characteristics may bias the results

Question 8

Strengths and weakness of field experiments

Answer 8

Likely to reflect real life because of its natural setting

Less likelihood of demand characteristics affecting data as ppts may not no they are being studied

Question 9

Independent group design

Answer 9

Different groups are given different IV conditions

Question 10

Repeated measures design

Answer 10

Same group goes through every experimental conditions

Question 11

Matched pairs

Answer 11

Ppts with key variables are put into different groups then given different iv

Question 12

Problem and Solution for independent groups

Answer 12

Internal validity low
Some groups may be better than other groups at tasks

Random assigned groups

Question 13

Independent groups design strengths and weakness

Answer 13

Strength
Avoided order effects as ppts are only tested once and also avoids fatigue effects

Weakness
Needs more ppts than a repeated measures designs as you need more ppl to get the same amount of data
Costing In time a money

Question 14

Repeated measures problems and solution

Answer 14

Order effect
Fatigue effect
Low internal validity

S= counterbalaning
Ppts have to go through conditions in different orders

Question 15

Strength and weakness for repeated measures

Answer 15

Good control of ppts effects meaning how the ppts may have different mindsets. Same plts are used
Comparing them against themselves

Order effect produced
Ppt may score better on the second condition as they get better w experience or worse due to fatigue effect

Question 16

Matched pairs solution and problem

Answer 16

Internal validity

Use identical twins same genes very comparable

Question 17

Strength and weakness of matched pairs

Answer 17

Avoids order effects as it is similar to an independent group design

Very time consuming to match ppts on key variables it may also be impossible to match people completely even twins have differences

Question 18

How is HM unethical

Answer 18

Face and name was given out breaches confidentiality

No consent was given as ppt could not remember giving consent

Question 19

How is Sebastian and hernandez

Answer 19

Kept the school ppts attended came from private and they weren’t in stressful task as they were ask to remember list of numbers which is not traumatic

Question 20

If significant we

Answer 20

Reject null hypothesis

Question 21

If not significant we

Answer 21

Accept the null hypothesis

Question 22

Type 1 error

Answer 22

Reject the null hypothesis when it’s true

Question 23

Type 2 error

Answer 23

Accept the null hypothesis when it’s false

Question 24

Positive skew

Answer 24

Median and mean is higher than the mode

Question 25

Negative skew

Answer 25

Mean and median is lower than the mode