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Table 4 Number of domain items and Cronbach Alpha’s for original and revised TDFQ

From: Measuring implementation behaviour of menu guidelines in the childcare setting: confirmatory factor analysis of a theoretical domains framework questionnaire (TDFQ)

Domain

Original TDFQ (75 items)

Revised TDFQ (61 items)

 

# of items

α

# of items

α

Knowledge

5

0.85

5

0.85

Skills

3

0.61

3

0.61

Professional role and identity

3

0.88

3

0.89

Beliefs about capabilities

6

0.80

6

0.80

Optimism

3

0.67

3

0.67

Beliefs about consequences

8

0.71

4

0.89

Reinforcement

4

0.73

4

0.73

Intentions

4

0.90

4

0.90

Goals

4

0.68

4

0.67

Memory, attention and decision processes

4

0.56

3

0.64

Environmental context and resources

9

0.77

7

0.79

Social influences

6

0.64

4

0.68

Emotion

7

0.89

5

0.88

Behavioural regulation

9

0.76

6

0.80