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cognitive approach
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Assumptions of the cognitive approach:
There are similarities and differences in the way that humans and computers process information.
There are individual differences in cognitive processes like learning, thinking, attention, and memory this explains our differing behaviors and emotions
Aims:
ASD group would score significantly lower on the eye test as compared to the control group.
The ASD group would score significantly higher on the AQ test as compared to the control groupsĀ
The females of the ānormalā group (2&3) would score higher on the eyes test than the males of that same group
Males in the normal group would score higher on the AQ test as compared to females
The eye test and AQ test results will be negatively correlated.
Psychology being Investigated:
Theory of mind
The ability to attribute mental states to ourselves and other people
This can include desires, emotions etc
Its about using this knowledge to understand, explain and predict the actions of others.
Its also about understanding that other people have unique perceptions and world views that may be different from our own.
ASD:Ā
A neurodevelopmental disorder impairing a child's ability to communicate and interact. Symptoms include inability to identify facial expressions, and repetitive behaviours.
AS and HFA fall under this
IQ:Ā
A measure of intelligence that produces a score representing a personās mental age. Average=100
WAISR scale used to measureĀ Ā
EQ:
Measure of emotional intelligence
Ceiling effect:Ā
When the majority of participants meet the highest score possible. Individual differences in participants are difficult to identify, which is an issue.
Background: - Issues with original procedure
FORCED CHOICE 2 OPTIONS and opposite words too - revised version has 4 and 3 foils arent the opposite
CEILING EFFECT 25 - 36 eyes in revised eye test
BASIC AND COMPLEX EMOTION - only complex in revised
WORD MEANING - glossary given in revised
MALE AND FEMALE IMBALANCEĀ - equal male and female eyes in revised
DIRECTION OF EYES - removed
Research method:
Quasi-experimental - almost an experiment -Ā has controls, but no random allocation of participants
Sample:Ā Group 1
15 adult males
Mean age 29.7 yrs
Average IQ 115
Volunteer sampling - magazine adverts (Autistic Society magazine)
Sample: Group 2
Comparative control groups of adults
122 adults
From the adult community and educational classes at Exeter UK and the public library in Cambridge
55 male 67 female
Mixed occupation and education
Mean age 46.5
Sample: Group 3
Student comparison group
From University of Cambridge
Mean age 20.8
Smart - not representative
103 students
Sample: Group 4
IQ matched with ASD group
14
116 IQ
28 mean age
Selected randomly from the general population
Problems with original test and the solutions:
1) FORCED CHOICE BETWEEN TWO OPTIONS - foil was opposite of target: 3 foils that arent exact opposite
2) CIELING EFFECT - 25 questions to 36 so it isnāt as easy to get high score
3) BOTH BASIC AND COMPLEX EMOTIONS - only complex emotions
4) COULD TELL EMOTION FROM DIRECTION - removed
5) MALE/FEMALE IMBALANCE - equal
6) WORD MEANING - glossary given
Creating the test:
40 sets of eyes, target words, and foils
Atleast 5 of 8 judges had to agree target word was appropriate
If more than 2 judges selected a foil word then a new target word, set of foils or both were generated.
When the group 2 and 3 results came for four questions, the groups consistently chose the foil, as the normal group would ideally get most questions correct, these 4 were removed from the eye test and not considered in the analysis
procedure
To begin the eye test each participant read the glossary to familiarise themselves with the words, and were told they could refer back to it whenever necessary.
All groups completed the eyes test, group 1 completed a gender identification test to prove that they could accurately identify other aspects of the eyes not associated with theory of mind. A pilot study showed that ānormal adultsā scored 100% on the gender recognition test so the control groups were not tested on this.
Everyone except group 2 completed the AQ test at home and sent it back via post.
All participants were aware of the nature of research, and data was kept confidential, individual participants cannot be identified from it.
results
n mean age eye test AQ
15 29.7 21.9 34.4
122 46.5 26.2 -
103 20.8 28.0 18.3
14 28.0 39.9 18.9
real life applications
Evaluation:
Strengths:
Internal validity -Ā
ā 8 judges - 5 had to agree for a set of target and foils to pass
ā only complex emotions
ā 36 eyes to avoid ceiling effect
ā participants tested individually in a controlled setting - to ensure othersā responses don't influence their own
ā glossary provided to ensure that all participants knew what the words meant
Reliability -Ā
Standardisation
ā images were the same size black and white
ā 4 words, 1 target and three foils for each image
ā all words judged on the same criteria by 8 judges
ā participants were all administered the test individually
ā all participants were provided a glossary
Aims the replicability of the study. This makes it easier to test for reliability.
Weaknesses:
Mundane realism - ecological validity:
The images are not dynamic while real life is, theory of mind is about more than eyes in real life you can see the rest of a person.Ā
Generalisability -Ā
The studyās Asperger syndrome/high-functioning autism (AS/HFA) group consisted entirely of male participants, which limits conclusions about how these findings apply to females with AS/HFA. Given that research suggests potential differences in how autism presents in males versus females, the lack of female representation may reduce the studyās ability to generalize its findings across genders.