# educational intervention

educational intervention

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Flo conducts an educational intervention using students from a local middle school. Suppose that, on the day of the post 7. test, several students are absent because their parents are told that the test is “optional”. Get help at Which of the following might challenge the internal validity of Flo’s study? Maturation a. b. educational intervention Mortality c. Statistical regression d. John Henry effect Random selection is to external validity as random assignment is to 8: Construct Validity a. b. Face Validity c. Measurement Validity d. Internal Validity AP value indicates: 9. The probability that we have obtained a correct research result educational intervention a. The probability that we have not obtained a correct research result b. The probability that the results obtained or more extreme could occur by chance c. 10. A research design is described as a 2 x 3 x5 factorial design. educational intervention How many independent variables have been included? a. Two b. Three d Five c. d. Ten 80 75 EXTRA CREDIT: Worth 1 point each 70 65 Use the figure to the right to answer the next two questions. It was 60- taken from a study report in which the effects of a media message 55 intervention (one city with media messages, one city that was not 50 exposed to the media messages) among three risk groups (not Non-Median Media sexually active and sexually transmitted infection negative, sexually Ciny active and sexually transmitted infection negative, sexually transmitted infection positive) was considered. educational intervention The dependent 85- 80- variable was a mean outcome score derived from a scale 75- completed by participants following the intervention period. 8 70- a5- 60- 11. Based on the data presented in the figure, what seems plausible for (d) but not (e): 55 A significant main effect a. 50- b. A significant interaction 45 C. Neither a significant main effect nor interaction Non-Meda Media City d. Not enough information given 12. How many independent variables appear to have been Not seualy active and STI negatives incorporated into this investigation? .Seually active and STI negative One a. -STpositive b. Two Three c. d. Six a no ueaw awoano ueay educational intervention

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