To what extent is seeking help a matter of mindset? One recent study gave studen

Question

To what extent is seeking help a matter of mindset? One recent study gave students a reminder that everyone struggles; this mindset intervention caused the students to seek more help and do better in school (Yeager et al., 2016). A chemistry teacher tries this intervention in her organic chemistry class. All students were given the mindset intervention at the beginning of the semester (the reminder that everyone struggles). At the end of the semester, all students took the American Chemistry Society Organic Chemistry Exam, a standardized test administered throughout the USA: µ = 36.99, = 10.62. For the students with the mindset intervention, the professor finds: M = 41.2, N = 25.

Compare and contrast the two approaches. Which do you feel would be more informative for others who are considering implementing this intervention? Why?

For thought: How well does this study fit the assumptions for calculating a CI? Is it fair for the professor to consider any difference from the national norm to be caused by the intervention? Would it matter at what university the professor worked at?

Explanation / Answer

se = sd/sqrt(n) = 10.62/sqrt(25) = 2.124

z = 1.96

95% margin of error = z* se

= 1.96* 2.124 = 4.16304

hence

confidence interval

(41.2 -4.16304   , 41.2 + 4.16304)

=(37.03696,45.36304)

since each value in CI is more than 36.99

the intervention is useful

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