PERCENTAGES QUIZ

LongitudinalStudies

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Longitudinal studies: a study in which the researchers follow a specific group of participants over a long period of time (weeks, months, years, etc.). repeated measure design Cross -sectional study- compares people at different ages or stages by comparing different groups at one point in time Ex. Comparing the overall life satisfaction of 40 year old vs. 60 yr olds.

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CohoRT

A group of participants all selected at the same age or stage

Longitudinal studies are a great way to analyze if a treatment was effective. We can complete an intervention and follow up with the subjects later on to see if treatment had long lasting effects.

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Cross sectional & Longitudinal studies are great for seeing how different phases in life influences mindfulness, cognition, and behavior changes. Ex. Mindfulness study (cross sectional design) Pts 2o yr old, 30 yr. old, 40 yr olds. All different stages of life

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Longitudinal vs. Cross-sectional study

Longitudinal studies have advantage over cross sectional studyThis is because we can assure that any changes seen are due to changes over time not individual differences in pts. Longitudinal follows SAME pts over time. Cross sectional follows groups of pts. in different age brackets. Their age might not influence behavior it could be participant variables

Weakness of longitudinal study May experience sample attrition the loss of pts. from a sample over time. Due to losing contact info, the desire to discontinue study, death, moving, etc

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67%

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25%

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