19 Sep 1. Explain the challenges to collecting accurate d
1. Explain the challenges to collecting accurate data in a work setting and provide more strategies to overcome these challenges 2. Relate several situations when a researcher uses closed-ended questionnaires and then when a researcher uses open-ended questionnaires. 3. Describe a Likert scale and provide an example. Analyze how Likert scales and semantic differential scales are similar. 4. Explain the three most commonly used measures of central tendency and measures of dispersion and give an example of each. 5. Explain how it would be possible for two distributions to have the same means but different standard deviations. 6. Distinguish between an independent and dependent t-test and show an example. 7. What is a Pearson Product-Moment Correlation (r)? What is an acceptable range for correlational coefficients? Which correlation is more indicative of a strong relationship, r = −0.78 or r = 0.53? Why?
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