TABLE 2.
Descriptive statistics for each item of the PEIRS (N = 119)
| PEIRS Item a | Missing | Mean | SD | Median | Max | Min | Floor effect | Ceiling effect | Correlation with PEIRS‐22 b (N = 117) |
|---|---|---|---|---|---|---|---|---|---|
| PR1 | 0 | 3.7 | 0.51 | 4 | 4 | 2 | 1 | 71.3 | 0.30 |
| PR2 | 1 | 3.4 | 0.81 | 3 | 4 | 0 | 1.7 | 50.4 | 0.79 |
| PR3 | 2 | 3.2 | 0.85 | 4 | 4 | 1 | 1 | 42.9 | 0.68 |
| PR4 | 2 | 3.5 | 0.67 | 4 | 4 | 1 | 1 | 61.3 | 0.51 |
| PR5 | 0 | 3.6 | 0.56 | 4 | 4 | 1 | 1 | 68.1 | 0.57 |
| PR6 | 0 | 3.4 | 0.72 | 4 | 4 | 1 | 1 | 51.3 | 0.47 |
| PR7 | 0 | 3.4 | 0.81 | 4 | 4 | 1 | 1 | 54.6 | 0.86 |
| PR8 | 2 | 3.5 | 0.75 | 4 | 4 | 1 | 1 | 60.5 | 0.50 |
| PR9 | 1 | 3.4 | 0.78 | 4 | 4 | 0 | 1.7 | 56.3 | 0.97 |
| PR10 | 0 | 3.3 | 0.82 | 3 | 4 | 0 | 1.7 | 48.7 | 0.73 |
| PR11 | 0 | 3.2 | 0.89 | 3 | 4 | 0 | 1.7 | 43.7 | 0.76 |
| PR12 | 1 | 3.3 | 0.87 | 4 | 4 | 0 | 1.7 | 52.1 | 0.91 |
| PR13 | 0 | 3.2 | 0.95 | 3 | 4 | 0 | 2.5 | 46.2 | 0.94 |
| PR14 | 1 | 3.6 | 0.73 | 4 | 4 | 0 | 0.8 | 66.4 | 0.95 |
| CN1 | 3 | 3.1 | 0.96 | 3 | 4 | 0 | 1.7 | 41.2 | 0.83 |
| CN2 | 2 | 3.2 | 0.99 | 3 | 4 | 0 | 2.5 | 45.4 | 0.65 |
| CN3 | 3 | 3.4 | 0.81 | 4 | 4 | 0 | 2.5 | 51.3 | 0.87 |
| CN4 | 1 | 3.6 | 0.74 | 4 | 4 | 0 | 1.7 | 68.1 | 1.0 |
| CT1 | 4 | 3.6 | 0.67 | 4 | 4 | 0 | 0.8 | 63.9 | 1.0 |
| CT2 | 1 | 3.5 | 0.73 | 4 | 4 | 0 | 0.8 | 63.9 | 0.99 |
| CT3 | 2 | 3.6 | 0.67 | 4 | 4 | 0 | 0.8 | 64.7 | 0.99 |
| CT4 | 1 | 3.4 | 0.73 | 4 | 4 | 0 | 0.8 | 54.6 | 0.76 |
| T1 | 4 | 3.5 | 0.85 | 4 | 4 | 0 | 2.5 | 63.0 | 1.0 |
| T2 | 1 | 3.2 | 1.01 | 3 | 4 | 0 | 3.4 | 45.4 | 0.86 |
| T3 | 1 | 3.5 | 0.77 | 4 | 4 | 0 | 1.7 | 63.0 | 1.0 |
| T4 | 3 | 3.5 | 0.83 | 4 | 4 | 0 | 1.7 | 63.0 | 1.0 |
| T5 | 1 | 3.5 | 0.79 | 4 | 4 | 0 | 1.7 | 61.3 | 0.95 |
| SU1 | 2 | 3.3 | 0.87 | 4 | 4 | 0 | 1.7 | 49.6 | 0.82 |
| SU2 | 3 | 3.4 | 0.85 | 4 | 4 | 0 | 0.8 | 52.9 | 0.96 |
| SU3 | 1 | 3.1 | 0.99 | 3 | 4 | 0 | 0.8 | 45.4 | 0.39 |
| FV1 | 2 | 3.5 | 0.81 | 4 | 4 | 0 | 1.7 | 60.5 | 0.99 |
| FV2 | 1 | 3.6 | 0.76 | 4 | 4 | 0 | 1.7 | 67.2 | 1.0 |
| FV3 | 2 | 3.2 | 1.02 | 3.5 | 4 | 0 | 3.4 | 48.7 | 0.78 |
| BE1 | 2 | 3.6 | 0.68 | 4 | 4 | 0 | 1.8 | 68.9 | 0.95 |
| BE2 | 3 | 3.2 | 0.85 | 3 | 4 | 0 | 1.8 | 44.5 | 0.82 |
| BE3 | 3 | 3.5 | 0.70 | 4 | 4 | 1 | 0 | 53.8 | 0.58 |
| BE4 | 3 | 3.4 | 0.81 | 4 | 4 | 0 | 0.8 | 52.9 | 0.83 |
Rows with bold texts indicate the items retained in the PEIRS‐22.
a
The codes correspond to the items in the 37‐item PEIRS: procedural requirements (PR, 14 items), convenience (CN, 4 items), contributions (CT, 4 items), two themes combined as ‘team environment and interaction’ (T, 5 items), support (SU, 3 items), feel valued (FV, 3 items) and benefits (BE, 4 items). Each item uses a 5‐point Likert scale scored 4 (‘strongly agree’) to 0 (‘strongly disagree’).
b
Item responses missing for each participant were replaced with mean of the items completed by that participant. The correlation coefficient was not corrected for overlap between item and scale.