Maths in GCSE Psychology

Which measure of central tendency is most sensitive to extreme scores?

• Mean

• Median

• Mode

• Range

Which measure of central tendency is not affected by extreme scores?

• Mean

• Median

• Mode

• Range

Which measure of central tendency can be used with categorical data?

• Mean

• Median

• Mode

• Range

What is the calculation for finding the mean?

• Add all values and divide by the number of values

• Multiply all values and divide by the number of values

• Subtract all values and divide by the number of values

• Divide all values and multiply by the number of values

What is the calculation for finding the median in a data set with an odd number of values?

• The value in the middle

• The average of the two middle values

• The highest value

• The lowest value

What is the calculation for finding the range?

• Subtract the highest value from the lowest value

• Add the highest value to the lowest value

• Multiply the highest value by the lowest value

• Divide the highest value by the lowest value

What does a positive skew indicate in a distribution?

• Most scores are close to the mean

• Most scores are below the mean

• Most scores are above the mean

• There is no distinct pattern

What does a negative skew indicate in a distribution?

• Most scores are close to the mean

• Most scores are below the mean

• Most scores are above the mean

• There is no distinct pattern

What is the calculation for finding the mode in a data set?

• The value that appears most frequently

• The value in the middle

• The highest value

• The lowest value

Which measure of central tendency is least affected by outliers?

• Mean

• Median

• Mode

• Range