F a psychologist wanted to compare 6-year-old and 10-year-old children on recognition memory performance at one point in time, the psychologist would use the method of data collection.

Cross-sectional.

Explanation:

Cross-sectional research studies are based on observations that take place in different groups at one time. This means there is no experimental procedure, so no variables are manipulated by the researcher. Instead of performing an experiment, you would simply record the information that you observe in the groups you are examining. Because of this, a cross-sectional research study can be used to describe the characteristics that exist in a group, but it cannot be used to determine any relationship that may exist. This method is used to gather information only. The information may then be used to develop other methods to investigate the relationship that is observed.

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