Statistics Paper

| October 22, 2018

To carry out a validation study, an I/O psychologist is developing a
regression equation from data collected from those hired two years ago.
Specifically, the I/O psychologist is examining the relationship between
extraversion, cognitive skills, and communication ability on sales performance
(the dependent measure). The data are given in the resource document
Currently, the same I/O psychologist must make a decision about which two
applicants to hire for newly-created sales positions. There are 10 applicants
for the two positions, who completed quantitative measures on the same
predictors above.
In this assignment, you will perform the multiple regression analysis on the
data from those hired two years ago. You will then use that information to make
decisions regarding which of the current candidates should be hired..
1. Enter variables using the stepwise procedure.
2. Interpret the results and write the regression equation using the
following format:
Y = (b1 x X1) + (b2 x X2) + (b3 x X3) + a, where a is the intercept, and the
bs are regression coefficients.
1. In a statement of 300-400 words, describe what the data indicate
about employee performance and coaching needs. Include the following in the
statement:
2. A discussion of which of these employees may need coaching and which are
performing at acceptable levels.
State the regression equation you wrote above, and use the equation computed
and the data obtained from those hired two years ago to make a decision about
which two individuals should be offered the current positions. Justify your
decision in a statement of 300-400 words.
Quantitative Measures
Data
To
carry out a validation study, an I/O psychologist is developing a regression
equation from data collected from those hired two years ago. Specifically, the
I/O psychologist is examining the relationship between extraversion, cognitive
skills, and communication ability on sales performance (the dependent measure).
The data are shown below.

Extraversion

Cognitive Skills

Communication Ability

Sales Performance $

6

10

19

21000

5

10

14

21000

5

8

14

22000

3

7

13

15000

7

14

16

22000

4

9

11

17000

6

9

15

28000

5

9

10

19000

5

11

20

16000

5

10

17

18000

Currently,
the same I/O psychologist must make a decision about which two applicants to
hire for sales positions. There are 10 applicants for the position, who
completed quantitative measures on the same predictors above. The data are
shown below.

Applicant

Extraversion

Cognitive Skills

Communication Ability

John Smith

5

9

17

Jane Doe

4

6

11

Burt McIntyre

7

13

19

Elizabeth Reddin

3

5

7

James Golstein

6

12

15

Shawn George

4

10

7

Susan Williams

3

6

8

Jose Valencia

5

10

12

Levi Ogletree

6

14

20

Pat Sylvester

2

8

6

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