I have two IVs that are highly correlated with each other at 0.979 (Pearson) & 0.919 (Kendall's).
IV1: Quality of response
IV2: Quality of Technical Advice
Sample Size: 252
Considering the similarity in the phrasing of the IVs, could it mean that the respondents do not perceive a difference between the two measurements?
Would it be appropriate to drop one of the items?