Is the relationship in your 
problem/question 
causal or arbitrary?
By the end of this presentation you will be able 
to determine if your relationship question is –
By the end of this presentation you will be able 
to determine if your relationship question is – 
Causal
By the end of this presentation you will be able 
to determine if your relationship question is – 
Causal 
or
By the end of this presentation you will be able 
to determine if your relationship question is – 
Causal 
or 
Arbitrary
What is a causal relationship?
A causal relationship is a relationship where one 
variable
A causal relationship is a relationship where one 
variable (temperature)
A causal relationship is a relationship where one 
variable (temperature)
A causal relationship is a relationship where one 
variable (temperature) causes another variable
A causal relationship is a relationship where one 
variable (temperature) causes another variable 
(ice melting).
A causal relationship is a relationship where one 
variable (temperature) causes another variable 
(ice melting).
Causal relationships are hard to establish 
because in order for it to be causal it must 
always happen without exception.
For example,
Heat causes molecules to move and interact 
more.
Heat causes molecules to move and interact 
more.
Heat causes molecules to move and interact 
more.
Heat causes molecules to move and interact 
more. 
There is hardly any 
scenario where that 
would not happen.
Heat causes molecules to move and interact 
more. 
And that is why this 
relationship is called 
causal.
The increase of temperature may influence ice 
cream sales, but this is not considered a causal 
relationship.
The increase of temperature may influence ice 
cream sales, but this is not considered a causal 
relationship.
The increase of temperature may influence ice 
cream sales, but this is not considered a causal 
relationship. 
That’s because there will be times when this is 
not the case, like when the price of ice-cream 
ingredients increases dramatically thus driving 
down the demand of ice-cream regardless of 
the temperature.
In most social science statistics we speak of 
causal relationships but what we really mean is 
that one variable influences another variable.
In most social science statistics we speak of 
causal relationships but what we really mean is 
that one variable influences another variable. 
Variable 1 causes Variable 2
In most social science statistics we speak of 
causal relationships but what we really mean is 
that one variable influences another variable. 
Variable 1 causes Variable 2
In most social science statistics we speak of 
causal relationships but what we really mean is 
that one variable influences another variable. 
Variable 1 causes Variable 2 
Variable 1 INFLUENCES Variable 2
In most social science statistics we speak of 
causal relationships but what we really mean is 
that one variable influences another variable. 
Variable 1 causes Variable 2 
Variable 1 INFLUENCES Variable 2
With so-called causal relationships the 
independent variable does the influencing:
With so-called causal relationships the 
independent variable does the influencing:
With so-called causal relationships the 
independent variable does the influencing: 
Temperature
With so-called causal relationships the 
independent variable does the influencing:
With so-called causal relationships the 
independent variable does the influencing and 
the dependent variable is what is effected
With so-called causal relationships the 
independent variable does the influencing and 
the dependent variable is what is effected
With so-called causal relationships the 
independent variable does the influencing and 
the dependent variable is what is effected
Here are some more examples:
Does illegal drug use influence lawlessness? 
Independent 
Variable
Does illegal drug use influence lawlessness?
Does illegal drug use influence lawlessness? 
Dependent 
Variable
Does teenage boredom influence thrill seeking?
Does teenage boredom influence thrill seeking? 
Independent 
Variable
Does teenage boredom influence thrill seeking?
Does teenage boredom influence thrill seeking? 
Dependent 
Variable
The wording you see in a word problem that 
will give you a clue that you are working with a 
“causal relationship” is the verb “predicts”.
For example, 
Does stress predict anxiety?
For example, 
Does stress predict anxiety? 
Meaning you can tell the amount of anxiety 
someone has, if you know the amount of stress 
they are under.
If this is the case, then you will classify the 
relationship as:
If this is the case, then you will classify the 
relationship as: 
Causal 
Arbitrary
In other instances the relationship between two 
variables is not causal but arbitrary.
In other instances the relationship between two 
variables is not causal but arbitrary. 
Causal 
Arbitrary
Meaning we do not know what causes what, we 
just know that:
Meaning we do not know what causes what, we 
just know that: 
- when one increases the other increases,
Meaning we do not know what causes what, we 
just know that: 
- when one increases the other increases, 
- or when one decreases the other decreases,
Meaning we do not know what causes what, we 
just know that: 
- when one increases the other increases, 
- or when one decreases the other decreases, 
- or when one increases the other decreases.
We just don’t know which influences which.
We just don’t know which influences which. 
Generally they most likely influence each other:
We just don’t know which influences which. 
Generally they most likely influence each other: 
Peace Probably influence and is 
Honorable 
influenced by Living
We just don’t know which influences which. 
Generally they most likely influence each other: 
Anxiety Probably influence and is 
Depression influenced by
When we are not sure which is which, then this 
becomes an arbitrary relationship as opposed 
to a causal relationship.
When we are not sure which is which, then this 
becomes an arbitrary relationship as opposed to 
a causal relationship. 
Causal 
Arbitrary
Note – unless your relationship problem 
specifies a causal relationship (with one variable 
influencing directly another variable) then the 
problem is most likely arbitrary.
What is the nature of your relationship 
question?
What is the nature of your relationship 
question? 
Causal 
or 
Arbitrary

Is the relationship arbitrary or causal?

  • 1.
    Is the relationshipin your problem/question causal or arbitrary?
  • 2.
    By the endof this presentation you will be able to determine if your relationship question is –
  • 3.
    By the endof this presentation you will be able to determine if your relationship question is – Causal
  • 4.
    By the endof this presentation you will be able to determine if your relationship question is – Causal or
  • 5.
    By the endof this presentation you will be able to determine if your relationship question is – Causal or Arbitrary
  • 6.
    What is acausal relationship?
  • 7.
    A causal relationshipis a relationship where one variable
  • 8.
    A causal relationshipis a relationship where one variable (temperature)
  • 9.
    A causal relationshipis a relationship where one variable (temperature)
  • 10.
    A causal relationshipis a relationship where one variable (temperature) causes another variable
  • 11.
    A causal relationshipis a relationship where one variable (temperature) causes another variable (ice melting).
  • 12.
    A causal relationshipis a relationship where one variable (temperature) causes another variable (ice melting).
  • 13.
    Causal relationships arehard to establish because in order for it to be causal it must always happen without exception.
  • 14.
  • 15.
    Heat causes moleculesto move and interact more.
  • 16.
    Heat causes moleculesto move and interact more.
  • 17.
    Heat causes moleculesto move and interact more.
  • 18.
    Heat causes moleculesto move and interact more. There is hardly any scenario where that would not happen.
  • 19.
    Heat causes moleculesto move and interact more. And that is why this relationship is called causal.
  • 20.
    The increase oftemperature may influence ice cream sales, but this is not considered a causal relationship.
  • 21.
    The increase oftemperature may influence ice cream sales, but this is not considered a causal relationship.
  • 22.
    The increase oftemperature may influence ice cream sales, but this is not considered a causal relationship. That’s because there will be times when this is not the case, like when the price of ice-cream ingredients increases dramatically thus driving down the demand of ice-cream regardless of the temperature.
  • 23.
    In most socialscience statistics we speak of causal relationships but what we really mean is that one variable influences another variable.
  • 24.
    In most socialscience statistics we speak of causal relationships but what we really mean is that one variable influences another variable. Variable 1 causes Variable 2
  • 25.
    In most socialscience statistics we speak of causal relationships but what we really mean is that one variable influences another variable. Variable 1 causes Variable 2
  • 26.
    In most socialscience statistics we speak of causal relationships but what we really mean is that one variable influences another variable. Variable 1 causes Variable 2 Variable 1 INFLUENCES Variable 2
  • 27.
    In most socialscience statistics we speak of causal relationships but what we really mean is that one variable influences another variable. Variable 1 causes Variable 2 Variable 1 INFLUENCES Variable 2
  • 28.
    With so-called causalrelationships the independent variable does the influencing:
  • 29.
    With so-called causalrelationships the independent variable does the influencing:
  • 30.
    With so-called causalrelationships the independent variable does the influencing: Temperature
  • 31.
    With so-called causalrelationships the independent variable does the influencing:
  • 32.
    With so-called causalrelationships the independent variable does the influencing and the dependent variable is what is effected
  • 33.
    With so-called causalrelationships the independent variable does the influencing and the dependent variable is what is effected
  • 34.
    With so-called causalrelationships the independent variable does the influencing and the dependent variable is what is effected
  • 35.
    Here are somemore examples:
  • 36.
    Does illegal druguse influence lawlessness? Independent Variable
  • 37.
    Does illegal druguse influence lawlessness?
  • 38.
    Does illegal druguse influence lawlessness? Dependent Variable
  • 39.
    Does teenage boredominfluence thrill seeking?
  • 40.
    Does teenage boredominfluence thrill seeking? Independent Variable
  • 41.
    Does teenage boredominfluence thrill seeking?
  • 42.
    Does teenage boredominfluence thrill seeking? Dependent Variable
  • 43.
    The wording yousee in a word problem that will give you a clue that you are working with a “causal relationship” is the verb “predicts”.
  • 44.
    For example, Doesstress predict anxiety?
  • 45.
    For example, Doesstress predict anxiety? Meaning you can tell the amount of anxiety someone has, if you know the amount of stress they are under.
  • 46.
    If this isthe case, then you will classify the relationship as:
  • 47.
    If this isthe case, then you will classify the relationship as: Causal Arbitrary
  • 48.
    In other instancesthe relationship between two variables is not causal but arbitrary.
  • 49.
    In other instancesthe relationship between two variables is not causal but arbitrary. Causal Arbitrary
  • 50.
    Meaning we donot know what causes what, we just know that:
  • 51.
    Meaning we donot know what causes what, we just know that: - when one increases the other increases,
  • 52.
    Meaning we donot know what causes what, we just know that: - when one increases the other increases, - or when one decreases the other decreases,
  • 53.
    Meaning we donot know what causes what, we just know that: - when one increases the other increases, - or when one decreases the other decreases, - or when one increases the other decreases.
  • 54.
    We just don’tknow which influences which.
  • 55.
    We just don’tknow which influences which. Generally they most likely influence each other:
  • 56.
    We just don’tknow which influences which. Generally they most likely influence each other: Peace Probably influence and is Honorable influenced by Living
  • 57.
    We just don’tknow which influences which. Generally they most likely influence each other: Anxiety Probably influence and is Depression influenced by
  • 58.
    When we arenot sure which is which, then this becomes an arbitrary relationship as opposed to a causal relationship.
  • 59.
    When we arenot sure which is which, then this becomes an arbitrary relationship as opposed to a causal relationship. Causal Arbitrary
  • 60.
    Note – unlessyour relationship problem specifies a causal relationship (with one variable influencing directly another variable) then the problem is most likely arbitrary.
  • 61.
    What is thenature of your relationship question?
  • 62.
    What is thenature of your relationship question? Causal or Arbitrary