Can we recall information better when we are not anxious? A cognitive psychologist hypothesized that we tend to remember

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Can we recall information better when we are not anxious? Acognitive psychologist hypothesized that we tend to remember thingsbetter when we are calm than when we are anxious. A group ofcollege students were asked to read a detailed report about atraffic accident. The next day the students returned to take a testover information they had read. The students were randomly assignedto either an anxious group or a control group. Students in theanxious condition were told that their performance on the recalltest would determine whether they would be entered into a raffle towin $1,000. Students in the control condition were not toldanything.
The results showed that on average students in the controlcondition recalled 80% of the facts about the traffic accidentwhereas students in the anxious condition recalled 70%. A t-testshowed that this difference was statistically significant. Theresearcher concluded that anxiety reduces memory.
What type of study design was used?
Experiment
Quasi-Experiment
Correlational Research
Observation