PSYCH339 Lecture Notes - Lecture 3: Coefficient Of Determination, Personnel Selection, Standard Deviation
2 Oct 2017
School
Department
Course
Professor
Document Summary
Variance: talkativeness, job performance ultimately what we care about; how well you do in your job/how effective you are, intelligence to make a prediction. Without variance, there is no personnel psychology. We are often talking about differences among people, like things such as the above three. Purpose is trying to help organizations meet their goals by helping with people/the personnel who work for the organization. Predict, measure and perhaps improve level of performance via training all imply that there is variance in performance. Donuts there are variances in calories. Standard deviation graph seeing how many people go below the lines. We want to know how far above/below average the score is. That is why we want to get rid of units because it is not very helpful/meaningful to us. We do that by dividing values by the sd. All of the above was discussed last class. Correlation: notion of shared variance is correlation.
