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Psychology component 2 > Personal investigation- sleep study > Flashcards

Personal investigation- sleep study Flashcards

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1
Q

What’s a quasi experiment?

A

The iv isn’t manipulated by the researcher, its naturally occurring and the iv is a difference between people that exists (i.e. gender or age)
Researcher examines the effect of the variable on the dependant variable
The different qusais are difference (age) or natural (natural disaster)

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2
Q

What is the definition of sleep?

A

A periodic, natural, reversible and near total loss of consciousness

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3
Q

What is our study?

A

A quasi experiment on age and sleep

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4
Q

What is our independent variable?

A

People aged 25 and over
Children aged 12-25
When the prefrontal lobe develops

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5
Q

What is our dependant variable?

A

Hours of sleep, their score on the Pittsburgh quality sleep index

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6
Q

What can be some confounding variables?

A

Variables that aren’t being manipulated or manipulated by the researcher, that affect some participants behaviour but not others
-Caffeine intake
-Sleep medication
-subjects taken
-Sharing a bedroom at house
-Everyday activity’s

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7
Q

What can be some extraneous variables?

A

Variables in a study that aren’t manipulated by the researcher but affects the result (DV) of All participants equally
e.g. Temp, noise, light

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8
Q

What direction are we taking our hypothesis?

A

One tailed directional

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9
Q

Our hypothesis?

A

There will be an increase in sleep quality scores on the psqi in participants aged 25 and above compared to those aged 12-25 years old

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10
Q

Our null hypothesis?

A

There will be no significant difference in sleep quality scores on the psqi in participants aged 25 and above compared to those aged 12-25 years old

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11
Q

Methodology of study- How do we use the quasi experiment?

A

The age of participants is naturally occuring

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12
Q

Methodology of study- what technique did it?

A

Self report
P’s record information about themselves and their sleep patterns via questionnaires, in this case the psqi

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13
Q

What experimental design did we use?

A

Independent groups
The groups of age categorys

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14
Q

What sampling did we use and why?

A

Opportunity
Easier than systematic as we dont need a list of all students, we can just take who’s available
Quick as we don’t have to workout groups
Suitable

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15
Q

What is a target population?

A

Who in the society does the study relate to and who can it be applied to and is it still relevant

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16
Q

Who is our sample frame?

A

Teachers and student in notre dame

17
Q

Ethics in our study- privacy?

A

May invade privacy asking questions on psqi, but questionaries will be destroyed once final score been calculated

18
Q

Ethics in our study- Confidentiality?

A

P’s creating own sort code to not be identified
house number + dob

19
Q

Ethics in our study- Deception?

A

P’s offered a brief with clear instructions and info before they consent

20
Q

Ethics in our study- Right to withdraw?

A

Before the study, during the study and after

21
Q

Ethics in our study- Informed concent?

A

Teachers get permission from themselves
Head teacher gives consent by proxy

22
Q

Ethics in our study- Protection from harm?

A

Offered help in the debrief with a source to help

23
Q

Mean of our results under 25?

A

7.86 reoccurring

24
Q

Mean of our result over 25?

A

8.46

25
Q

Median of our result 25-?

A

7

26
Q

Median of our result 25+?

A

7

27
Q

Mode of our result 25-?

A

7

28
Q

Mode of our result 25+?

A

7

29
Q

Range of our result 25-?

A

15

30
Q

Range of our result 25+?

A

-16

31
Q

Standard deviation 25-?

A

4.206495355
4.21

32
Q

Standard deviation 25+?

A

4.889736579
7.89

33
Q

What graph have we chosen to represent data?

A

Bar chart

34
Q

What inferential statistics test will we use and why?

A

Mann Whitney U test
We have a difference
Use independent data (independent groups)
And we use ordinal+

35
Q

According to the mann whitney u, what’s our observed value?

A

107.5

36
Q

According to the mann whitney u, what’s our critical value?

A

72

37
Q

Are our result significant?

A

No

38
Q

What can we conclude from our study?

A

Age does not affect sleep significantly
-To help expand do study elsewhere

39
Q

How can we improve our study?

A

-Further research at different schools
-Ethics studying on children
-Taking children out of lesson distracting then, could have used break or lunch

Psychology component 2 (26 decks)

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