In a cognitive psychology experiment, a researcher investigated the effect of room temperature on short-term memory recall. Using a repeated measures design, a sample of 10 participants was asked to study and recall word lists under two conditions:

Condition X (Warm Room): Studying a list of 20 words in a room heated to $26∘C26^\circ\text{C}$ .
Condition Y (Cool Room): Studying a different, counterbalanced list of 20 words in a room cooled to $18∘C18^\circ\text{C}$ .

The number of words recalled correctly by each participant under both conditions was recorded.

Table 2: Recall scores (out of 20) under Condition X and Condition Y

Participant	Condition X (Warm Room)	Condition Y (Cool Room)
1	12	16
2	16	18
3	10	14
4	17	19
5	14	15
6	11	12
7	19	20
8	9	13
9	14	15
10	12	15

Condition X (Warm Room): Studying a list of 20 words in a room heated to $26∘C26^\circ\text{C}$ .
Condition Y (Cool Room): Studying a different, counterbalanced list of 20 words in a room cooled to $18∘C18^\circ\text{C}$ .

The number of words recalled correctly by each participant under both conditions was recorded.

Table 2: Recall scores (out of 20) under Condition X and Condition Y

Participant	Condition X (Warm Room)	Condition Y (Cool Room)
1	12	16
2	16	18
3	10	14
4	17	19
5	14	15
6	11	12
7	19	20
8	9	13
9	14	15
10	12	15

Data handling and analysis

Question 125

Markscheme

Data handling and analysis

Question 125

Markscheme

Data handling and analysis

Question 125

Data handling and analysis Questions

Data handling and analysis

Question 125

Data handling and analysis Questions