PSYC 2310 Lecture : Research

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viridiangerbil329

16 Dec 2011

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Example listening to music while studying improves students test scores. (students would study 20 words, given 2 minutes 1 group with music and headphones another group with headphones and no music. They would then be showed a 5 minute distractor film. They would then be asked to remember and write down how many words they remember. ) (independent variable-listening to music or not dependent variable- test scores experimental group-people listening to music control group-ones who aren t listening to music) The only thing that s different between the 2 groups is the independent variable (cause effect solutions) Extraneous variable 2 groups but all the smart people are in 1 and all the stupid are in the other therefore the groups are not equal. Try to create twin pairs within the groups ( get the people to take tests ) Random sampling picking people at random from the population. Random assignment- randomly assign them to a group.

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3. Research participants are randomly assigned to different groups in an experiment in order to a increase chances that participants are representative of people in general b. minimize chances that participants in any group know each other. o minimize any differences between groups of participants. d increase chances that the different groups have the same number of participants.

salmondonkey355

1) A doctor and his assistant are studying patients with visuospatial neglect. They 36 patients who just had strokes that damaged their right hemispheres. 16 of these patients have been diagnosed with visuospatial neglect based on their attention test score of 53 or less (normal test score is <236 ). These visuospatial neglect patients recovery is then tracked over a period of 2 weeks, that is their attention test score are observed after varying periods of time. All the patients recover expect 6 who seem to have made no recovery. a) What is a plausible hypothesis for this study? b) What is the independent variable? c) What is the dependent variable? d) Is this study an experiment? Explain e) What can u infer about the recovery from visuospatial neglect

cerisecrab872

17. A psychologist is studying the effects of orange juice on the prevention of colds. She has one group drink a glass of orange juice every day for the month of December. A second group drinks a glass of orange juice once a week during December, while a third group is not given any orange juice at all during this time period. Previous medical histories were obtained for all the participants. In January, she records how many colds each participant gets over the entire month. In this study, the independent variable is A) the severity of the colds in January B) the number of colds each participant got in January C) the prior medical histories D) drinking orange juice every day E) the amount of orange juice consumed

lemoncat920

PSYC 2310 Lecture : Research

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