Tests for spss

• What is the main focus of the video regarding statistical analysis?


  The video demonstrates how to choose the appropriate statistical analysis based on collected data and research design.
• Why do students often find choosing the correct statistical technique challenging?


  Students may fear the complexity of selecting the appropriate statistical technique for their data analysis.
• What software is commonly used for statistical analysis in courses?

  SPSS
• What is the goal when choosing the right statistic for research?


  The goal is to match the research design to the appropriate analysis technique.
• What are the three basic questions to address when choosing a statistical analysis?


  1. What type of research question are we asking? 2. What type and number of variables are we analyzing? 3. What type of data do we have?
• What is a descriptive research question?


  A descriptive research question aims to describe a group of subjects or determine typical characteristics without intervention.
• Give an example of a descriptive research question.


  What is the typical or average blood pressure for people in a given population?
• What is a correlational or predictive research question?


  It seeks to develop a relationship between variables or predict one variable based on another.
• Provide an example of a correlational research question.


  Is there a relationship between someone's blood pressure and their socioeconomic status?
• What defines a cause and effect or group differences question?


  It compares groups to see if there are statistically significant differences between them on one or more outcomes.
• Give an example of a cause and effect research question.


  Is the typical blood pressure higher in one residential area compared to another?
• What is descriptive analysis in statistics?


  Descriptive analysis determines the frequency of occurrences and measures central tendency like mean, median, and mode.
• What are measures of central tendency?


  Mean, median, and mode.
• What does the Pearson correlation measure?


  The Pearson correlation measures the strength and direction of the relationship between two continuous variables.
• What does a positive correlation indicate?


  A positive correlation indicates that as one variable increases, the other variable also increases.
• What is regression analysis used for?


  Regression analysis explores the predictive ability of independent variables on a continuous dependent variable.
• What is a T-test used for?


  A T-test is used to compare the mean scores of two groups on a continuous outcome variable.
• What is the difference between a paired T-test and an independent samples T-test?


  A paired T-test compares the same subjects at two different times, while an independent samples T-test compares two different groups.
• What is a one-way ANOVA used for?


  A one-way ANOVA is used to compare the mean scores of more than two groups on a continuous variable.
• What does a factorial ANOVA test?


  A factorial ANOVA tests the impact of two or more independent variables on one dependent variable.
• What is a mixed between-within design?


  A mixed between-within design combines both between groups and repeated measures in one study.
• What is MANOVA used for?


  MANOVA is used to compare groups on multiple related outcome variables.
• What is the first step after identifying your research question?


  The first step is to identify and define your variables.
• What is an independent variable?


  An independent variable is the variable that the researcher manipulates or defines in an experiment.
• What is a dependent variable?


  A dependent variable is the outcome that is measured in response to changes in the independent variable.
• Why is it important to have an operational definition for each variable?


  An operational definition clarifies how each variable will be measured and defined in the study.
• What should you determine regarding the normal range of scores for your variables?


  You should determine what is a normal or expected range of scores for your dependent variables.
• What is the significance of identifying the level of measurement for each variable?


  Identifying the level of measurement helps in selecting the appropriate statistical analysis technique.
• What are the common levels of measurement in research?


  Common levels of measurement include nominal, ordinal, interval, and ratio scales.
• What is considered a valid measurement for blood pressure?


  A blood pressure measurement above a certain number
• What is the purpose of determining an operational definition in research?


  To clarify the criteria for valid measurements
• What are the two types of variables mentioned in the study material?

  Independent and dependent variables
• Why is it essential to understand the relationship between independent and dependent variables?


  To identify which variables influence others
• What are the three levels of measurement scales discussed?

  • Nominal or categorical scale
  • Ordinal scale
  • Numeric or continuous scale (interval and ratio)
• What is an example of a nominal scale measurement?


  Male versus female
• What does an ordinal scale represent?


  A ranking or level of agreement
• What is an example of an interval scale measurement?


  Body temperature
• What distinguishes a ratio scale from an interval scale?


  A ratio scale has a true zero point
• Why might you want to change the level of measurement for a variable?

  To facilitate different types of analyses
• What is a key consideration for numeric variables in research?


  Whether the scores are normally distributed