PSYCHOLOGICAL STATISTICS

• Divergent thinking 


  Trying to generate alternative solution to a problem
• Convergent thinking


  To narrow down the best possible ideas
• Statistics 


  The science conducting studies to collect conclusion from a data
• Descriptive statistics 


  describes th characteristics of a data
• Inferential statistics 


  Focus on "making prediction" about a large group of data
• Qualitative variables 


  Are those that express a qualitative attributes
• Quantitative variables

  Are numerical and can be ordered or ranked
• Discrete variables 


  Assume valuables that can be counted
• Continous variables

  Assume an infinite number of values between any two specific values
• Measurement scale

  Classifies data into mutually exclusive categories
• Ordinal scale

  Items in this scale are ordered, tanking from lowest to highest
• Nominal scale

  One simple names or categories responses
• Interval scale


  Numerical scales in which intervals have the same interpretation
• Ratio scale 


  The most informative scale
• Probability sampling

  Involves randomly selecting a small group
• Simple random sampling

  All members of population have an equal chance of being selected is done randomly
• Stratified sampling

  Population can be divided into two smaller groups, you would draw a sample from each of strata