Psychology - Research Methods - Quantitative Data

Match the following Levels of Measurement with the right descriptor

• Categories - like favorite colours

• Nominal Data

• Measured - using units , equal intervals

• Ordinal Data

• Data in order - like height

• Interval Data

Match the following measures of central tendency (averages) with how they are worked out

• Put into order and select middle value

• Mode

• Identify group/s - which is most common

• Median

• • + all numbers and devide by nos of nos

• Mean

Match the following types of data

• Ordinal = research not published before

• Secondary data

• Previously collected, used for new study

• Qualitative Data

• Descriptive, non-numeric data

• Primary Data

How many significant figures are in the number 0.00345?

• 2

• 3

• 4

• 5

56982 to 1 significant figure is...

• 56000

• 57000

• 60000

56982 to 2 significant figures is

• 60000

• 57000

What is the correct formula to calculate a percentage?

• Divide the given value by the total and multiply by 100

• Subtract the given value from the total and multiply by 100

• Add the given value to the total and multiply by 100

• Multiply the given value by the total and divide by 100

What is 25% as a ratio?

• 1:25

• 1:5

• 1:4

• 1:3

Which of the following best describes a normal distribution?

• a) An arrangement of data that is skewed and forms a triangular pattern

• c) An arrangement of data that is symmetrical and forms a bell-shaped pattern where the mean, median, and/or mode falls in the centre at the highest peak

• d) An arrangement of data that is irregular and does not follow any specific pattern

• An arrangement of data that is asymmetrical and forms a U-shaped pattern

What does standard deviation measure?

• The average of all the scores in a dataset

• The distance between the highest and lowest scores in a dataset

• The spread of scores around the median

• The spread of scores around the mean