Stats Assignment

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
6
5
5
3
7
4
6
5
5
5

Cognitive Skills
10
10
8
7
14
9
9
9
11
10

Communication Ability
19
14
14
13
16
11
15
10
20
17

Sales Performance $
21000
21000
22000
15000
22000
17000
28000
19000
16000
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
John Smith
Jane Doe
Burt McIntyre
Elizabeth Reddin
James Golstein
Shawn George
Susan Williams
Jose Valencia
Levi Ogletree
Pat Sylvester

Extraversion
5
4
7
3
6
4
3
5
6
2

Cognitive Skills
9
6
13
5
12
10
6
10
14
8

Communication Ability
17
11
19
7
15
7
8
12
20
6