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

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