PSYC 301 Final: Lab 4 R-Code

• School: Queen's University
• Department: Psychology
• Course: PSYC 301
• Professor: Jill A Jacobson

Document Summary

#suppose researchers want to establish that their manipulation did not also affect participants" mood and finds that the positive mood of the 15 participants in condition a (m = 4. 55, sd = 1. 05) did not differ significantly from the positive mood of the 15 participants in condition b (m. = . 487, sd = 1. 22), t = 0. 81, p = . 42. #suppose consider d = -. 5 to +. 5 (medium effect) to be our equivalence boundary. Tosttwo(m1 = 4. 55, m2 = 4. 87, sd1 = 1. 05, sd2 = 1. 22, n1 = 15, n2 = 15, low_eqbound_d = -. 5, high_eqbound_d = . 5, alpha = . 05) #since line doesn"t completely fall wthin two bounds of -. 5 and +. 5 (only one part of the line falls within) so it"s not statistially equivalent. #since black line contains the 0. 0 it"s not significantly different. Tosttwo(m1 = 4. 55, m2 = 4. 87, sd1 = 1. 05, sd2 = 1. 22, n1 = 150, n2 = 150, low_eqbound_d = -