1.3.1 Raw data recording tables and numerical skills Quiz: OCR Psychology, Unit 1

The 20 questions

1. In a raw data table, where should units of measurement like seconds be placed?

   • In the header
   • In the title
   • In the footer
   • In every cell

2. What do individual rows in a standard psychological raw data table usually represent?

   • Statistical tests
   • Single participants
   • Mean scores
   • Dependent variables

3. What is the fraction 3/5 expressed as a percentage?

   • 40%
   • 60%
   • 35%
   • 53%

4. In a memory study, 15 out of 60 participants recalled all words. What percentage is this?

   • 25%
   • 20%
   • 15%
   • 30%

5. A sample consists of 12 males and 36 females. What is the simplified male-to-female ratio?

   • 3:1
   • 1:3
   • 12:36
   • 1:2

6. What is the number 0.0468 rounded to two significant figures?

   • 0.047
   • 0.04
   • 0.046
   • 0.05

7. How is the number 4500 written in standard mathematical form?

   • 4.5 x 10^3
   • 0.45 x 10^4
   • 4.5 x 10^2
   • 45 x 10^2

8. What is 0.003 expressed correctly in standard form?

   • 3 x 10^-3
   • 3 x 10^-2
   • 0.3 x 10^-2
   • 3 x 10^3

9. What does the mathematical symbol '<<' represent in data analysis?

   • Much less than
   • Proportional to
   • Approximately equal
   • Much greater than

10. What does the mathematical symbol '∝' represent in research reporting?

    • Equal to
    • Approximately equal
    • Greater than
    • Proportional to

11. What is the decimal 0.75 expressed as a simplified fraction?

    • 3/4
    • 4/3
    • 7/10
    • 7/5

12. A researcher records scores of 4, 6, 8, 10 and 12. What is the mean score?

    • 10
    • 40
    • 8
    • 6

13. What is the median for the raw data set: 3, 9, 2, 7, 5?

    • 5.2
    • 3
    • 5
    • 7

14. What does a raw data table contain that a summary table does not?

    • Individual participant scores
    • Calculated means
    • Bar charts
    • Standard deviations

15. A participant's score increases from 20 to 25. What is the percentage increase?

    • 20%
    • 50%
    • 5%
    • 25%

16. What is the best estimate for the calculation 19.8 multiplied by 4.1?

    • 80
    • 8
    • 60
    • 800

17. How many significant figures are in the number 0.00520?

    • 5
    • 6
    • 2
    • 3

18. What is the mode for the raw data set: 4, 7, 7, 8, 9, 7, 4?

    • 4
    • 8
    • 7
    • 6.5

19. What is the range for the raw data set: 12, 4, 19, 8, 15?

    • 15
    • 19
    • 11
    • 12

20. What is the difference in order of magnitude between 10^2 and 10^5?

    • 3 orders
    • 30 orders
    • 10 orders
    • 1000 orders

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