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Table 3 Validity and reliability of the Placement Evaluation Tool (PET) (19-items)

From: Measuring the quality of nursing clinical placements and the development of the Placement Evaluation Tool (PET) in a mixed methods co-design project

Variable

Sample

Result

Significance

(p-value)

Outcome

Construct validity

 Content validity:

12 students

.82

 

Valid: >.78

  I-CVI: Stage 5

10 educators

.95

 

Valid: >.78

 Concurrent validity:

  Correlation with CLES scale

62 students

.834

0.01

Valid: highly significant

 Criterion validity:

  (a) Item to Total score

1263

.606 to .832

< 0.001

Valid

  (b) Scale vs Global score

1263

.722

0.01

Valid >.7: highly significant.

  (c) Inter-Item correlation (ICC: Intraclass Correlation Coefficient).

1263

.709 (CI: .692–.727)

< 0.001

Valid- .5–.75 = good correlation

Reliability

 Internal consistency reliability (Cronbach’s alpha)

  (1). Clinical Environment

1263

.94

N/A

Reliable (>.70)

  (2). Learning Support

1263

.96

N/A

Reliable (>.70)

  Scale: Test and retest (Wilcoxon signed rank test)

22 students

z = −1.705

.088

Acceptable non-significant difference at retest