Table 4 Descriptive statistics for the experiment’s dependent variables

Mean( μ )

Median

Std. dev.

Search-based approach (IA)

2.40

2.45

1.08

Style-based approach (RA)

2.59

2.41

1.03

Difference (IA −RA)

-0.19

-0.62

1.32

Architecture complexity (AC)

Mean( μ )

Median

Std. dev.

Search-based approach (IA)

6.46

6.65

2.77

Style-based approach (RA)

7.02

7.05

2.70

Difference (IA −RA)

-0.57

-1.90

3.47

Questionnaire grade (QG)

Mean( μ )

Median

Std. dev.

Search-based approach (IA)

6.85

7.00

1.43

Style-based approach (RA)

7.04

7.25

1.27

Difference (IA −RA)

-0.19

-0.50

1.51