Hypothesis: Girls need less guesses than boys to match some hidden pairs of cards The modal group for boys was larger than that for girls More than half of the boys took between 9 and 12 guesses The more guesses a person took the longer it took them to complete the task There are 21 females There are 30 males Nobody took between 15 and 18 guesses The range for the males is larger than the range for the girls The mean for the girls is about 10 guesses The mean for the boys is about 9 guesses Pupils were given 16 cards face down and asked to turn over two at a time, if they were the same they were removed if not they were turned back over Controlled Assessment 3 MemoryTest guesses MemoryTest time 7 14 19 8 6 11 9 10 8 7 8 8 11 12 11 8 8 9 6 11 9 6 6 5 8 7 10 11 12 9 9 4 20 18 10 10 11 7 13 10 6 10 6 11 4 0 10 9 9 21 28 48 54 36 35 36 37 47 34 34 34 32 41 36 37 38 56 43 26 42 38 31 33 24 33 26 37 40 36 31 33 31 56 63 38 31 36 36 36 44 31 36 36 44 26 0 33 27 33 56 Controlled Assessment 3 Number of guesses 3≤g<6 6≤g<9 9≤g<12 12≤g<15 15≤g<18 18≤g<21 21≤g<24 Total Number of guesses 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Total Controlled Assessment 3 Female 0 10 8 2 0 1 0 21 Female 0 0 0 0 0 2 2 6 3 1 4 1 0 1 0 0 0 0 1 0 0 21 Male 3 7 13 2 0 2 1 28 Male 0 0 0 2 1 4 2 1 4 6 3 1 1 0 0 0 0 1 0 1 1 28 Bar chart to show the number of guesses taken 14 12 Frequency 10 8 Female Male 6 4 2 0 3≤g<6 6≤g<9 9≤g<12 12≤g<15 15≤g<18 18≤g<21 21≤g<24 Number of guesses Scattergraph to show memory test results and the time spent on the test 25 Number of guesses 20 15 10 5 0 0 10 20 30 40 Time taken (seconds) Controlled Assessment 3 50 60 70 Number of Guesses for Males 3≤g<6 6≤g<9 9≤g<12 12≤g<15 15≤g<18 18≤g<21 21≤g<24 Number of Guesses for Females 3≤g<6 6≤g<9 9≤g<12 12≤g<15 15≤g<18 18≤g<21 21≤g<24 Controlled Assessment 3