4-1 Discussion: Propose a TestImagine that you could design a psychological test of your own. In your post, describe what you would measure and why. Be sure to include the practical need for the test and how you would go about designing it. How would you assess reliability, validity, and utility?In response to your peers, offer suggestions for refining and strengthening their proposed test.For both your initial post and your responses, consider the modules resources and cite where appropriate.To complete this assignment, review the Discussion Rubric document.Link below is to text related to course;https://mbsdirect.vitalsource.com/#/books/9781259956232/epubcfi/6/34%5B%3Bvnd.vst.idref%3DChapter07%5D!/4/6%5Bdata-ea01017811c04c5dac71fb8497cd18cd%5D/24%5Bdata-5c66977b30ec42d4bd551dfa2e32f807%5D/2%5Bdata-8a9ed93d4d1c4affb8a25fa7f4ac505d%5D%400:56.8
Obtain the general solution of the following DEs: i. y′′′ + y′′ − 4y′ + 2y = 0 ii. y(4) + 4y(2) = 0 iii. x(x − 2)y′′ + 2(x − 1)y′ − 2y = 0; use y1 = (1 − x) iv. y′′ − 4y = sin2(x) v. y′′ − 4y′ + 3y = x ; use y1 = e3x vi. y′′ + 5y′ + 6y = e2xcos(x) vii. y′′ + y = sec(x) tan(x)
Obtain the general solution of the following DEs: i. y′′′ + y′′ − 4y′ + 2y = 0 ii. y(4) + 4y(2) = 0 iii. x(x − 2)y′′ + 2(x − 1)y′ − 2y = 0; use y1 = (1 − x) iv. y′′ − 4y = sin2(x) v. y′′