Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Friday 16 May 2025
Morning (Time: 2 hours) Paper
reference 9PS0/01
Psychology
Advanced
PAPER 1: Foundations in Psychology
You do not need any other materials. Total Marks
Instructions
•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 90.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
•• The list of formulae and statistical tables are printed at the start of this paper.
Candidates may use a calculator.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end.
Turn over
P78684A
©2025 Pearson Education Ltd.
Y:1/1/1/1
*P78684A0140*
, FORMULAE AND STATISTICAL TABLES
Standard deviation (sample estimate)
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
x
x
2
n
1
Spearman’s rank correlation coefficient
6
d2
1
n
n 2 1
Critical values for Spearman’s rank
Level of significance for a one-tailed test
0.05 0.025 0.01 0.005 0.0025
Level of significance for a two-tailed test
N 0.10 0.05 0.025 0.01 0.005
5 0.900 1.000 1.000 1.000 1.000
6 0.829 0.886 0.943 1.000 1.000
7 0.714 0.786 0.893 0.929 0.964
8 0.643 0.738 0.833 0.881 0.905
9 0.600 0.700 0.783 0.833 0.867
10 0.564 0.648 0.745 0.794 0.830
11 0.536 0.618 0.709 0.755 0.800
12 0.503 0.587 0.678 0.727 0.769
13 0.484 0.560 0.648 0.703 0.747
14 0.464 0.538 0.626 0.679 0.723
15 0.446 0.521 0.604 0.654 0.700
16 0.429 0.503 0.582 0.635 0.679
17 0.414 0.485 0.566 0.615 0.662
18 0.401 0.472 0.550 0.600 0.643
19 0.391 0.460 0.535 0.584 0.628
20 0.380 0.447 0.520 0.570 0.612
21 0.370 0.435 0.508 0.556 0.599
22 0.361 0.425 0.496 0.544 0.586
23 0.353 0.415 0.486 0.532 0.573
24 0.344 0.406 0.476 0.521 0.562
25 0.337 0.398 0.466 0.511 0.551
26 0.331 0.390 0.457 0.501 0.541
27 0.324 0.382 0.448 0.491 0.531
28 0.317 0.375 0.440 0.483 0.522
29 0.312 0.368 0.433 0.475 0.513
30 0.306 0.362 0.425 0.467 0.504
The calculated value must be equal to or exceed the critical value in this table for
significance to be shown.
2
1 DD02572
1/
*P78684A0240*
©2020 Pearson Education Ltd.
, Chi-squared distribution formula
O
E
2
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
X2 df
r
1
c
1
E
Critical values for chi-squared distribution
Level of significance for a one-tailed test
0.10 0.05 0.025 0.01 0.005 0.0005
Level of significance for a two-tailed test
df 0.20 0.10 0.05 0.025 0.01 0.001
1 1.64 2.71 3.84 5.02 6.64 10.83
2 3.22 4.61 5.99 7.38 9.21 13.82
3 4.64 6.25 7.82 9.35 11.35 16.27
4 5.99 7.78 9.49 11.14 13.28 18.47
5 7.29 9.24 11.07 12.83 15.09 20.52
6 8.56 10.65 12.59 14.45 16.81 22.46
7 9.80 12.02 14.07 16.01 18.48 24.32
8 11.03 13.36 15.51 17.54 20.09 26.12
9 12.24 14.68 16.92 19.02 21.67 27.88
10 13.44 15.99 18.31 20.48 23.21 29.59
11 14.63 17.28 19.68 21.92 24.73 31.26
12 15.81 18.55 21.03 23.34 26.22 32.91
13 16.99 19.81 22.36 24.74 27.69 34.53
14 18.15 21.06 23.69 26.12 29.14 36.12
15 19.31 22.31 25.00 27.49 30.58 37.70
16 20.47 23.54 26.30 28.85 32.00 39.25
17 21.62 24.77 27.59 30.19 33.41 40.79
18 22.76 25.99 28.87 31.53 34.81 42.31
19 23.90 27.20 30.14 32.85 36.19 43.82
20 25.04 28.41 31.41 34.17 37.57 45.32
21 26.17 29.62 32.67 35.48 38.93 46.80
22 27.30 30.81 33.92 36.78 40.29 48.27
23 28.43 32.01 35.17 38.08 41.64 49.73
24 29.55 33.20 36.42 39.36 42.98 51.18
25 30.68 34.38 37.65 40.65 44.31 52.62
26 31.80 35.56 38.89 41.92 45.64 54.05
27 32.91 36.74 40.11 43.20 46.96 55.48
28 34.03 37.92 41.34 44.46 48.28 56.89
29 35.14 39.09 42.56 45.72 49.59 58.30
30 36.25 40.26 43.77 46.98 50.89 59.70
40 47.27 51.81 55.76 59.34 63.69 73.40
50 58.16 63.17 67.51 71.42 76.15 86.66
60 68.97 74.40 79.08 83.30 88.38 99.61
70 79.72 85.53 90.53 95.02 100.43 112.32
The calculated value must be equal to or exceed the critical value in this table for
significance to be shown.
3
2
DD02572
1/
*P78684A0340*
©2020 Pearson Education Ltd.
Turn over
, Mann-Whitney U test formulae
na
na
1
Ra
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
U a na nb
2
n
n
1
U b na nb
b b Rb
2
(U is the smaller of Ua and Ub)
Critical values for the Mann-Whitney U test
Nb
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Na
p ≤ 0.05 (one-tailed), p ≤ 0.10 (two-tailed)
5 4 5 6 8 9 11 12 13 15 16 18 19 20 22 23 25
6 5 7 8 10 12 14 16 17 19 21 23 25 26 28 30 32
7 6 8 11 13 15 17 19 21 24 26 28 30 33 35 37 39
8 8 10 13 15 18 20 23 26 28 31 33 36 39 41 44 47
9 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54
10 11 14 17 20 24 27 31 34 37 41 44 48 51 55 58 62
11 12 16 19 23 27 31 34 38 42 46 50 54 57 61 65 69
12 13 17 21 26 30 34 38 42 47 51 55 60 64 68 72 77
13 15 19 24 28 33 37 42 47 51 56 61 65 70 75 80 84
14 16 21 26 31 36 41 46 51 56 61 66 71 77 82 87 92
15 18 23 28 33 39 44 50 55 61 66 72 77 83 88 94 100
16 19 25 30 36 42 48 54 60 65 71 77 83 89 95 101 107
17 20 26 33 39 45 51 57 64 70 77 83 89 96 102 109 115
18 22 28 35 41 48 55 61 68 75 82 88 95 102 109 116 123
19 23 30 37 44 51 58 65 72 80 87 94 101 109 116 123 130
20 25 32 39 47 54 62 69 77 84 92 100 107 115 123 130 138
4
3 DD02572
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*P78684A0440*
©2020 Pearson Education Ltd.
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 3 GCE
Friday 16 May 2025
Morning (Time: 2 hours) Paper
reference 9PS0/01
Psychology
Advanced
PAPER 1: Foundations in Psychology
You do not need any other materials. Total Marks
Instructions
•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 90.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
•• The list of formulae and statistical tables are printed at the start of this paper.
Candidates may use a calculator.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end.
Turn over
P78684A
©2025 Pearson Education Ltd.
Y:1/1/1/1
*P78684A0140*
, FORMULAE AND STATISTICAL TABLES
Standard deviation (sample estimate)
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
x
x
2
n
1
Spearman’s rank correlation coefficient
6
d2
1
n
n 2 1
Critical values for Spearman’s rank
Level of significance for a one-tailed test
0.05 0.025 0.01 0.005 0.0025
Level of significance for a two-tailed test
N 0.10 0.05 0.025 0.01 0.005
5 0.900 1.000 1.000 1.000 1.000
6 0.829 0.886 0.943 1.000 1.000
7 0.714 0.786 0.893 0.929 0.964
8 0.643 0.738 0.833 0.881 0.905
9 0.600 0.700 0.783 0.833 0.867
10 0.564 0.648 0.745 0.794 0.830
11 0.536 0.618 0.709 0.755 0.800
12 0.503 0.587 0.678 0.727 0.769
13 0.484 0.560 0.648 0.703 0.747
14 0.464 0.538 0.626 0.679 0.723
15 0.446 0.521 0.604 0.654 0.700
16 0.429 0.503 0.582 0.635 0.679
17 0.414 0.485 0.566 0.615 0.662
18 0.401 0.472 0.550 0.600 0.643
19 0.391 0.460 0.535 0.584 0.628
20 0.380 0.447 0.520 0.570 0.612
21 0.370 0.435 0.508 0.556 0.599
22 0.361 0.425 0.496 0.544 0.586
23 0.353 0.415 0.486 0.532 0.573
24 0.344 0.406 0.476 0.521 0.562
25 0.337 0.398 0.466 0.511 0.551
26 0.331 0.390 0.457 0.501 0.541
27 0.324 0.382 0.448 0.491 0.531
28 0.317 0.375 0.440 0.483 0.522
29 0.312 0.368 0.433 0.475 0.513
30 0.306 0.362 0.425 0.467 0.504
The calculated value must be equal to or exceed the critical value in this table for
significance to be shown.
2
1 DD02572
1/
*P78684A0240*
©2020 Pearson Education Ltd.
, Chi-squared distribution formula
O
E
2
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
X2 df
r
1
c
1
E
Critical values for chi-squared distribution
Level of significance for a one-tailed test
0.10 0.05 0.025 0.01 0.005 0.0005
Level of significance for a two-tailed test
df 0.20 0.10 0.05 0.025 0.01 0.001
1 1.64 2.71 3.84 5.02 6.64 10.83
2 3.22 4.61 5.99 7.38 9.21 13.82
3 4.64 6.25 7.82 9.35 11.35 16.27
4 5.99 7.78 9.49 11.14 13.28 18.47
5 7.29 9.24 11.07 12.83 15.09 20.52
6 8.56 10.65 12.59 14.45 16.81 22.46
7 9.80 12.02 14.07 16.01 18.48 24.32
8 11.03 13.36 15.51 17.54 20.09 26.12
9 12.24 14.68 16.92 19.02 21.67 27.88
10 13.44 15.99 18.31 20.48 23.21 29.59
11 14.63 17.28 19.68 21.92 24.73 31.26
12 15.81 18.55 21.03 23.34 26.22 32.91
13 16.99 19.81 22.36 24.74 27.69 34.53
14 18.15 21.06 23.69 26.12 29.14 36.12
15 19.31 22.31 25.00 27.49 30.58 37.70
16 20.47 23.54 26.30 28.85 32.00 39.25
17 21.62 24.77 27.59 30.19 33.41 40.79
18 22.76 25.99 28.87 31.53 34.81 42.31
19 23.90 27.20 30.14 32.85 36.19 43.82
20 25.04 28.41 31.41 34.17 37.57 45.32
21 26.17 29.62 32.67 35.48 38.93 46.80
22 27.30 30.81 33.92 36.78 40.29 48.27
23 28.43 32.01 35.17 38.08 41.64 49.73
24 29.55 33.20 36.42 39.36 42.98 51.18
25 30.68 34.38 37.65 40.65 44.31 52.62
26 31.80 35.56 38.89 41.92 45.64 54.05
27 32.91 36.74 40.11 43.20 46.96 55.48
28 34.03 37.92 41.34 44.46 48.28 56.89
29 35.14 39.09 42.56 45.72 49.59 58.30
30 36.25 40.26 43.77 46.98 50.89 59.70
40 47.27 51.81 55.76 59.34 63.69 73.40
50 58.16 63.17 67.51 71.42 76.15 86.66
60 68.97 74.40 79.08 83.30 88.38 99.61
70 79.72 85.53 90.53 95.02 100.43 112.32
The calculated value must be equal to or exceed the critical value in this table for
significance to be shown.
3
2
DD02572
1/
*P78684A0340*
©2020 Pearson Education Ltd.
Turn over
, Mann-Whitney U test formulae
na
na
1
Ra
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
U a na nb
2
n
n
1
U b na nb
b b Rb
2
(U is the smaller of Ua and Ub)
Critical values for the Mann-Whitney U test
Nb
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Na
p ≤ 0.05 (one-tailed), p ≤ 0.10 (two-tailed)
5 4 5 6 8 9 11 12 13 15 16 18 19 20 22 23 25
6 5 7 8 10 12 14 16 17 19 21 23 25 26 28 30 32
7 6 8 11 13 15 17 19 21 24 26 28 30 33 35 37 39
8 8 10 13 15 18 20 23 26 28 31 33 36 39 41 44 47
9 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54
10 11 14 17 20 24 27 31 34 37 41 44 48 51 55 58 62
11 12 16 19 23 27 31 34 38 42 46 50 54 57 61 65 69
12 13 17 21 26 30 34 38 42 47 51 55 60 64 68 72 77
13 15 19 24 28 33 37 42 47 51 56 61 65 70 75 80 84
14 16 21 26 31 36 41 46 51 56 61 66 71 77 82 87 92
15 18 23 28 33 39 44 50 55 61 66 72 77 83 88 94 100
16 19 25 30 36 42 48 54 60 65 71 77 83 89 95 101 107
17 20 26 33 39 45 51 57 64 70 77 83 89 96 102 109 115
18 22 28 35 41 48 55 61 68 75 82 88 95 102 109 116 123
19 23 30 37 44 51 58 65 72 80 87 94 101 109 116 123 130
20 25 32 39 47 54 62 69 77 84 92 100 107 115 123 130 138
4
3 DD02572
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*P78684A0440*
©2020 Pearson Education Ltd.
