Skip to main content

Table 2 Principle components analysis (oblique rotation) of 47 items of impulsivity: Parent and teacher ratings from Conners and SDQ questionnaires (CP, SP and CT, ST, respectively).

From: The influence of serotonin- and other genes on impulsive behavioral aggression and cognitive impulsivity in children with attention-deficit/hyperactivity disorder (ADHD): Findings from a family-based association test (FBAT) analysis

Part 1 – The aggressive behavioral form of impulsivity (factors 1 and 2)

Item

Descriptor

Factor 1

Factor 2

CP47

Temper outbursts

0.950

 

CP21

Loses temper

0.893

 

SP5

Often has temper tantrums

0.896

 

CP31

Irritable

0.840

 

CP57

Touchy or easily annoyed

0.859

 

CP77

Mood changes quickly

0.820

 

CP1

Angry and resentful

0.916

 

CP40

Actively defies or refuses to

0.780

 

CP11

Argues with adults

0.826

 

CP68

Demands to be met at once

0.598

 

CP28

Excitable, impulsive

0.356

 

CP70

Spiteful or vindictive

1.000

 

SP12

Often fights with other children

0.588

 

CP66

Disturbs other children

0.294

 

CP64

Get upset if someone rearranges

0.947

 

SP7

Generally obedient, usually ...

-0.510

 

ST5

Often has temper tantrums

 

1.000

CT7

Temper outbursts; explosive,

 

0.972

CT45

Demands must be met at once

 

0.898

CT54

Mood changes quickly, drastically

 

0.945

CT37

Argues with adults

 

0.957

CT55

Interrupts or intrudes on others

 

0.655

CT8

Excitable, impulsive

 

0.661

CT29

Has difficulty waiting in turn

 

0.606

CT46

Blurts out answers to question

 

0.674

ST12

Often fights with other children

 

0.922

CT47

Spiteful or vindictive

 

0.989

CT20

Leaves seat in classroom or

 

0.544

ST7

Generally obedient, usually

 

-0.700

ST25

Good attention span sees

 

-0.958

Variance Explained

14.6

13.2

Eigen Value

20.4

4.42

Squared Multiple Correlation

0.92

0.90