Refer to the Journal of Applied Psychology (January 2011) study of the determinants of task performance, Exercise 12.94. In addition to x1 = conscientiousness score and x2 = {1 if highly complex job, 0 if not}, the researchers also used x3 = emotional stability score, x4 = organizational citizenship behavior score, and x5 = counterproductive work behavior score to model y = task performance score. One of their concerns is the level of multicollinearity in the data. Below is a matrix of correlations for all possible pairs of independent variables. Based on this information, do you detect a moderate or high level of multicollinearity? If so, what are your recommendations?

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X1 X4 X2 Хз Conscientiousness (x1) Job complexity (x2) .13 .62 Emotional stability (x3) .14 .03 Organizational citizenship (x4) .24 .24 Counterproductive work (x5) -25 -.62 -23 -.02 -.25