Mean differences for pre- and post-TLAS administration (control: n=12; TLA: n=11)
| Item . | Group . | Mean difference . | SD . |
|---|---|---|---|
| Aggregate of All TLS items | Control | −0.13 | 0.39 |
| TLA | 0.07 | 0.34 | |
| Involvement with teacher organizations | Control | −0.25 | 0.62 |
| TLA | 0.18 | 0.98 | |
| Design school policy | Control | 0.00 | 1.28 |
| TLA | 0.00 | 1.00 | |
| School-level decisions | Control | −0.42 | 0.67 |
| TLA | 0.09 | 0.94 | |
| Plan school improvement | Control | −0.42 | 0.79 |
| TLA | −0.09 | 0.70 | |
| Redesign instruction from assessment | Control | 0.17 | 1.03 |
| TLA | 0.18 | 0.40 | |
| Share ideas with colleagues | Control | 0.08 | 0.51 |
| TLA | 0.00 | 0.00 | |
| Mentor new teachers | Control | −0.50 | 0.90 |
| TLA | −0.09 | 0.94 | |
| Help make personnel decisions | Control | 0.08 | 1.31 |
| TLA | 0.00 | 0.77 | |
| Create partnerships with the community | Control | 0.00 | 0.95 |
| TLA | 0.27 | 1.10 | |
| Select types of professional development | Control | −0.08 | 1.16 |
| TLA | 0.36 | 0.92 | |
| Lead professional development | Control | −0.17 | 0.94 |
| TLA | 0.00 | 0.89 | |
| Influence school budget | Control | 0.00 | 0.60 |
| TLA | −0.09 | 0.54 | |
| Collaborate with peers | Control | −0.08 | 0.29 |
| TLA | 0.09 | 0.30 | |
| Lead or chair committees | Control | −0.25 | 1.29 |
| TLA | 0.36 | 0.67 | |
| Reflect on own teaching | Control | −0.08 | 0.29 |
| TLA | 0.00 | 0.00 | |
| Initiate school activities | Control | −0.17 | 1.11 |
| TLA | −0.09 | 0.94 |
| Item . | Group . | Mean difference . | SD . |
|---|---|---|---|
| Aggregate of All TLS items | Control | −0.13 | 0.39 |
| TLA | 0.07 | 0.34 | |
| Involvement with teacher organizations | Control | −0.25 | 0.62 |
| TLA | 0.18 | 0.98 | |
| Design school policy | Control | 0.00 | 1.28 |
| TLA | 0.00 | 1.00 | |
| School-level decisions | Control | −0.42 | 0.67 |
| TLA | 0.09 | 0.94 | |
| Plan school improvement | Control | −0.42 | 0.79 |
| TLA | −0.09 | 0.70 | |
| Redesign instruction from assessment | Control | 0.17 | 1.03 |
| TLA | 0.18 | 0.40 | |
| Share ideas with colleagues | Control | 0.08 | 0.51 |
| TLA | 0.00 | 0.00 | |
| Mentor new teachers | Control | −0.50 | 0.90 |
| TLA | −0.09 | 0.94 | |
| Help make personnel decisions | Control | 0.08 | 1.31 |
| TLA | 0.00 | 0.77 | |
| Create partnerships with the community | Control | 0.00 | 0.95 |
| TLA | 0.27 | 1.10 | |
| Select types of professional development | Control | −0.08 | 1.16 |
| TLA | 0.36 | 0.92 | |
| Lead professional development | Control | −0.17 | 0.94 |
| TLA | 0.00 | 0.89 | |
| Influence school budget | Control | 0.00 | 0.60 |
| TLA | −0.09 | 0.54 | |
| Collaborate with peers | Control | −0.08 | 0.29 |
| TLA | 0.09 | 0.30 | |
| Lead or chair committees | Control | −0.25 | 1.29 |
| TLA | 0.36 | 0.67 | |
| Reflect on own teaching | Control | −0.08 | 0.29 |
| TLA | 0.00 | 0.00 | |
| Initiate school activities | Control | −0.17 | 1.11 |
| TLA | −0.09 | 0.94 |