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AS Psychology (Methodology) > Variables > Flashcards

Flashcards in Variables Deck (54):
1

What are independent variables?

Variables we believe will cause a change to another variable

2

What is the name of the variable that we believe the independent variable will cause a change to?

The dependent variable

3

What is the name of the variable that we believe will cause a change to the dependent variable?

The independent variable

4

What are dependent variables?

Variables that we measure

5

What is the name of the variable that is measured?

The dependent variable

6

If we were investigating if the length of a word affected the number of words recalled, what would be the variable that we would be measuring? (i.e. the dependent variable)

The number of words correctly recalled

7

What are confounding variables sometimes known as?

Extraneous variables

8

What are extraneous variables another name for?

Confounding variables

9

What are confounding variables?

Variables that could cause a change to the dependent variable, even though we do not want them to

10

What, other than independent variables, can cause a change to the dependent variables?

Confounding variables

11

What, other than confounding variables, can cause a change to the dependent variables?

Independent variables

12

What are the two types of variables that can cause a change to the dependent variables?

Independent variables and confounding variables

13

What type of variable may an experimenter want to control because it was not wanted as part of the experiment?

Confounding variables

14

What type of group is exposed to the IV?

Experimental group

15

What type of group is not exposed to the IV?

Control group

16

What is the difference between the experimental group and the control group?

Experimental group = exposed to IV
Control group = not exposed to IV

17

What is the experimental group?

Group exposed to the IV

18

What is the control group?

Group not exposed to the IV

19

What is operationalism?

Making a hypothesis (?) measurable and specific

20

What are the 3 types of variable that psychologists are concerned with in their research?

Independent variables, dependent variables, confounding variables

21

Define the 3 types of variable that psychologists are concerned with in their research.

- Independent variables = Variables we believe will cause a change to another variable
- Dependent variables = Variables that we measure
- Confounding variables = Variables that could cause unwanted change to the dependent variable

22

Identify the independent variable in the following hypothesis:

There is a difference in the speed with which people react to visual and auditory stimuli.

Type of stimuli (visual or auditory)

23

Identify the dependent variable in the following hypothesis:

There is a difference in the speed with which people react to visual and auditory stimuli.

Speed of reaction/reaction time

24

Identify the independent and dependent variables in the following hypothesis:

There is a difference in the speed with which people react to visual and auditory stimuli.

IV = Type of stimuli (visual or auditory)
DV = Speed of reaction/reaction time

25

Identify the independent variable in the following hypothesis:

Cannabis affects memory.

Amount of cannabis (whether they have it or not)

26

Identify the dependent variable in the following hypothesis:

Cannabis affects memory.

Memory

27

Identify the independent and dependent variables in the following hypothesis:

Cannabis affects memory.

IV = Amount of cannabis (whether they have it or not)
DV = Memory

28

Identify the independent variable in the following hypothesis:

Bulls will charge more often when presented with a red rag than when presented with a blue rag.

Type of rag (blue or red)

29

Identify the dependent variable in the following hypothesis:

Bulls will charge more often when presented with a red rag than when presented with a blue rag.

Number of times the bull charges

30

Identify the independent and dependent variables in the following hypothesis:

Bulls will charge more often when presented with a red rag than when presented with a blue rag.

IV = Type of rag (blue or red)
DV = Number of times the bull charges

31

Identify the independent variable in the following hypothesis:

First born children learn to speak earlier than second born and subsequent children.

Family position; birth order

32

Identify the dependent variable in the following hypothesis:

First born children learn to speak earlier than second born and subsequent children.

Time taken for the child to learn to speak

33

Identify the independent and dependent variables in the following hypothesis:

First born children learn to speak earlier than second born and subsequent children.

IV = Family position; birth order
DV = Time taken for the child to learn to speak

34

Identify the independent variable in the following hypothesis:

Men drive faster than women.

Gender (male or female)

35

Identify the dependent variable in the following hypothesis:

Men drive faster than women.

Driving speed

36

Identify the independent and dependent variables in the following hypothesis:

Men drive faster than women.

IV = Gender (male or female)
DV = Driving speed

37

Identify the independent variable in the following hypothesis:

Lack of sleep affects learning in 10-year-old boys.

Hours of sleep

38

Identify the dependent variable in the following hypothesis:

Lack of sleep affects learning in 10-year-old boys.

Learning ability in 10-year-old boys

39

Identify the independent and dependent variables in the following hypothesis:

Lack of sleep affects learning in 10-year-old boys.

IV = Hours of sleep
DV = Learning ability in 10 year old boys

40

Identify the independent variable in the following hypothesis:

A baby under 9 months of age will not search for a hidden object

Age of baby

41

Identify the dependent variable in the following hypothesis:

A baby under 9 months of age will not search for a hidden object

Whether or not they search for an object

42

Identify the independent and dependent variables in the following hypothesis:

A baby under 9 months of age will not search for a hidden object

IV = Age of baby
DV = Whether or not they search for an object

43

Identify the independent variable in the following hypothesis:

Social class affects IQ scores.

Social class

44

Identify the dependent variable in the following hypothesis:

Social class affects IQ scores.

IQ scores

45

Identify the independent and dependent variables in the following hypothesis:

Social class affects IQ scores.

IV = Social class
DV = IQ scores

46

Identify the independent variable in the following hypothesis:

It is easier to remember items which are chunked together than it is to remember individual, unconnected items.

Whether items are individual or chunked together

47

Identify the dependent variable in the following hypothesis:

It is easier to remember items which are chunked together than it is to remember individual, unconnected items.

How well they remember the items (how many they remember)

48

Identify the independent and dependent variables in the following hypothesis:

It is easier to remember items which are chunked together than it is to remember individual, unconnected items.

IV = Whether items are individual or chunked together
DV = How well they remember the items (how many they remember)

49

Identify the independent variable in the following hypothesis:

Stressful experiences increase the likelihood of headaches.

Number of stressful experiences

50

Identify the dependent variable in the following hypothesis:

Stressful experiences increase the likelihood of headaches.

Number of headaches in a period of time

51

Identify the independent and dependent variables in the following hypothesis:

Stressful experiences increase the likelihood of headaches.

IV = Number of stressful experiences
DV = Number of headaches in a period of time

52

Identify the independent variable in the following hypothesis:

Time of day affects alertness

Time of day

53

Identify the dependent variable in the following hypothesis:

Time of day affects alertness

Alertness

54

Identify the independent and dependent variables in the following hypothesis:

Time of day affects alertness

IV = Time of day
DV = Alertness