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Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel International Advanced Level
Wednesday 17 January 2024
Afternoon (Time: 1 hour 30 minutes)
Paper
reference WPS01/01
Psychology
International Advanced Subsidiary
UNIT 1: Social and Cognitive 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 64.
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.
, Wilcoxon Signed Ranks test process
• Calculate the difference between two scores by taking one from the other
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
• Rank the differences giving the smallest difference Rank 1
Note: do not rank any differences of 0 and when adding the number of scores,
do not count those with a difference of 0, and ignore the signs when calculating
the difference
• Add up the ranks for positive differences
• Add up the ranks for negative differences
• T is the figure that is the smallest when the ranks are totalled (may be positive
or negative)
• N is the number of scores left, ignore those with 0 difference
Critical values for the Wilcoxon Signed Ranks test
Level of significance for a one-tailed test
0.05 0.025 0.01
Level of significance for a two-tailed test
n 0.1 0.05 0.02
N=5 0 – –
6 2 0 –
7 3 2 0
8 5 3 1
9 8 5 3
10 11 8 5
11 13 10 7
12 17 13 9
The calculated value must be equal to or less than the critical value in this table for
significance to be shown.
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