Scientific law, theory, hypothesis

• Scientific Law


  Describes what happens in nature based on observations and experiments
• Scientific Law


  Describes what happens, while scientific theories explain why or how it happens
• Hypothesis


  A possible explanation for phenomena, used to predict the outcome of research
• Null Hypothesis (Ho)


  States that there is no effect
• Alternative Hypothesis (Ha)


  States that there is an effect
• Independent Variable (IV)


  Also known as exposure variable, control variable, explanatory variable, or manipulated variable. It is the variable that is changed by the researcher to observe its effect on the dependent variable.
• Dependent Variable (DV)


  Also known as outcome variable, controlled variable, or independent variable. It is the variable that is affected by the change in the independent variable.