A researcher investigated context-dependent memory using two different groups of participants.

In the first condition, participants learned and recalled a list of 20 words in the same quiet classroom.
In the second condition, participants learned the list of 20 words in the quiet classroom but recalled them in a noisy school cafeteria.

The researcher recorded how many words participants recalled correctly in each condition.

Table 1: Mean number of words recalled and standard deviations

	Same environment (Classroom-Classroom)	Different environments (Classroom-Cafeteria)
Mean	14.8	10.2
Standard deviation	1.4	4.2

What do the standard deviation values in Table 1 suggest? Justify your answer.

A researcher investigated context-dependent memory using two different groups of participants.

In the first condition, participants learned and recalled a list of 20 words in the same quiet classroom.
In the second condition, participants learned the list of 20 words in the quiet classroom but recalled them in a noisy school cafeteria.

The researcher recorded how many words participants recalled correctly in each condition.

Table 1: Mean number of words recalled and standard deviations

	Same environment (Classroom-Classroom)	Different environments (Classroom-Cafeteria)
Mean	14.8	10.2
Standard deviation	1.4	4.2

What do the standard deviation values in Table 1 suggest? Justify your answer.

Data handling and analysis

Data handling and analysis Questions