# Hypotheses

•  When creating a hypothesis you need to consider lots of different factors or variables like:
•  Age
•  Gender
•  Personality
•  Location
•  Time of day
• It is these variables which we are controlling and testing
• This means that a hypothesis will indicate (tell you) which variables we are controlling and which variable we are testing

# The Variables

• There are two types of variables we consider when writing the hypothesis
• Dependent Variable (is what you are measuring)
• Independent Variable (is what you are controlling)
• Confounding variable

For example:

•  Younger drivers have more accidents compared to older drivers?
• I cannot control how many accidents people have (Dependent Variable)
• I can control or select the age of my respondents or drivers  (Independent Variable)
• I recommend having no more than three variables in your hypothesis

# The Hypothesis

• Hypotheses are statements which identify what your data will discover
• There are two types of hypotheses
• There will be no difference or relationship (null hypotheses, H0)
• There will be a difference or relationship (research hypotheses, H1)
• Another way of grouping hypotheses is:
• Experimental Hypothesis
• This states what you are expecting to happen because of the independent variable
• For example, five year old children will spend more time on the laptop compared to ten year old children who will spend most time on the gaming station.
• Research Hypothesis
• There is no independent variable but you state that there will be a difference or correlation between or within groups
• For example, there will be a positive correlation between owning a mobile phone and using social media
• I recommend having no more than one hypothesis (use sub hypotheses if needed)

# Sub Hypotheses

• Some researchers use sub hypotheses which are questions about the main hypotheses and if the questions are found to be true then the main hypotheses is likely to be true
• Sub hypotheses can help:
• In controlling the direction of the project
• In time management of the project
• In action planning of the project