distributions

• What is an IQ test primarily composed of?

  A series of logic questions
• What does an IQ score measure?

  It measures intelligence
• What is the average IQ score?

  100
• What does a higher IQ score indicate?

  Greater intelligence
• How do most people's IQ scores relate to the average?

  They score close to 100
• What shape does the distribution of IQ scores form on a graph?

  A bell shape
• What is the term for the common distribution of data that forms a bell shape?

  Normal distribution
• What are the characteristics of a normal distribution?

  • Symmetrical curve
  • Mean, median, and mode are equal
  • Sides do not touch the x-axis
• What does the y-axis represent in a histogram?

  Frequency
• What does the x-axis represent in a histogram?

  Value of the scores
• What does the mode represent in a normal distribution?

  The most common score
• How is the median defined in a normal distribution?

  It is the middle score
• What does the mean represent in a normal distribution?

  The average score
• How does the standard deviation relate to normal distribution?

  It indicates how far scores are from the mean
• What percentage of scores falls within one standard deviation of the mean?

  68%
• What percentage of scores falls within two standard deviations of the mean?

  95%
• What percentage of scores falls within three standard deviations of the mean?

  99.7%
• What does a score of 130 on an IQ test indicate?

  Top 2.5% of the population
• How is abnormality defined in psychology regarding IQ scores?

  As statistically infrequent scores
• What are the characteristics of skew distributions?

  • Scores shifted to one side
  • Long tail either right (positive) or left (negative)
  • Not symmetrical
• What indicates a positive skew in a distribution?

  Long tail pointing to the right
• What indicates a negative skew in a distribution?

  Long tail pointing to the left
• How does a well-constructed test typically distribute scores?

  Most scores around the middle
• What happens to the distribution if a test is too easy?

  Most scores will be high
• What happens to the distribution if a test is too hard?

  Most scores will be low
• How do the measures of central tendency behave in skew distributions?

  • Mode: highest point on the graph
  • Mean: pulled towards the tail
  • Median: between mode and mean
• What is the purpose of the tutorial videos mentioned?

  To cover research methods sections
• What resources do patrons of the neuron level and above receive?

  Access to exam tutorial videos and resources
• Who is thanked for supporting psych boost?

  Students and teachers
• What is the role of patrons at the developer level?

  Support the development of content
• What is the main focus of psych boost on YouTube?

  To provide educational content
• What is the purpose of the research mappers unit?

  To aid in understanding research methods
• What is the format of the videos mentioned?

  They include worked examples and exam tips
• What is the platform mentioned for accessing resources?

  Cyprus.com
• What is the main goal of psych boost?

  To educate and support students
• What is the significance of the support from patrons?

  It allows part-time teaching and content creation
• What is the next topic mentioned for the upcoming video?

  Research methods