Understanding Statistics for AAQ Part C

What is the primary focus of AAQ Part C?

• Identifying statistical terms

• Describing the meaning of statistical concepts

• Calculating statistical values

• Memorizing statistical formulas

Which measure of central tendency is most affected by outliers?

• Mean

• Median

• Range

• Mode

How is the mode determined in a data set?

• By identifying the most frequently occurring value

• By finding the middle value

• By calculating the average

• By subtracting the smallest value from the largest

What does a positive skew in a distribution indicate?

• There are two peaks in the distribution

• Scores are clustered to the left of the mean

• Scores are evenly distributed

• Scores are clustered to the right of the mean

What does the range of a data set represent?

• The difference between the highest and lowest values

• The middle value of the data set

• The average value of the data set

• The most frequently occurring value

What does a correlation coefficient close to 1 or -1 indicate?

• A strong relationship between variables

• No relationship between variables

• A weak relationship between variables

• A random relationship between variables

What does a p-value less than 0.05 signify?

• The null hypothesis should be accepted

• The study has a large effect size

• The results are statistically significant

• The results are likely due to chance

What does effect size tell us about a study?

• The most common value in the data set

• The average value of the data set

• The strength of the relationship between variables

• The probability of results occurring by chance

How does effect size differ from statistical significance?

• Effect size measures the average value, while statistical significance measures the most common value

• Effect size measures the probability of chance, while statistical significance measures the strength of a relationship

• Effect size and statistical significance are the same

• Effect size measures the strength of a relationship, while statistical significance measures the probability of chance

What is the importance of practicing the concepts covered in AAQ Part C?

• To memorize statistical formulas

• To understand how to apply and interpret statistics in research

• To calculate statistical values quickly

• To identify statistical terms