Heuristic Example Comparing Results Across Studies
| Lower Upper | |||||||
|---|---|---|---|---|---|---|---|
| Study | n | t | P | Decision | d | 95% | CI for d |
| 1 | 33 | 1.90 | 0.067 | NS | 0.33 | -0.02 | 0.68 |
| 2 | 120 | 1.20 | 0.231 | NS | 0.11 | -0.07 | 0.29 |
| 3 | 35 | 1.72 | 0.095 | NS | 0.29 | -0.05 | 0.63 |
| 4 | 50 | -2.62 | 0.012 | *** | -0.37 | -0.65 | -0.08 |
| 5 | 37 | 1.09 | 0.281 | NS | 0.18 | -0.15 | 0.50 |
| 6 | 39 | 1.81 | 0.078 | NS | 0.29 | -0.03 | 0.61 |
| 7 | 99 | 1.49 | 0.139 | NS | 0.15 | -0.05 | 0.35 |
| 8 | 6 | 2.40 | 0.062 | NS | 0.98 | -0.04 | 1.94 |
| 9 | 40 | 1.71 | 0.096 | NS | 0.27 | -0.05 | 0.58 |
| 10 | 37 | 1.89 | 0.067 | NS | 0.31 | -0.02 | 0.64 |
| Previous studies | |||||||
| combined | 496 | 3.44 | 0.001 | *** | 0.16 | 0.07 | 0.24 |
| Kulm et al. (2007) | 105 | 8.40 | <0.00 | *** | 0.82 | 0.60 | 1.04 |
| Kulm et al. & previous studies combined | 601 | 6.64 | <0.00 | *** | 0.27 | 0.19 | 0.35 |
| Lower Upper | |||||||
|---|---|---|---|---|---|---|---|
| Study | n | t | P | Decision | d | 95% | CI for d |
| 1 | 33 | 1.90 | 0.067 | NS | 0.33 | -0.02 | 0.68 |
| 2 | 120 | 1.20 | 0.231 | NS | 0.11 | -0.07 | 0.29 |
| 3 | 35 | 1.72 | 0.095 | NS | 0.29 | -0.05 | 0.63 |
| 4 | 50 | -2.62 | 0.012 | *** | -0.37 | -0.65 | -0.08 |
| 5 | 37 | 1.09 | 0.281 | NS | 0.18 | -0.15 | 0.50 |
| 6 | 39 | 1.81 | 0.078 | NS | 0.29 | -0.03 | 0.61 |
| 7 | 99 | 1.49 | 0.139 | NS | 0.15 | -0.05 | 0.35 |
| 8 | 6 | 2.40 | 0.062 | NS | 0.98 | -0.04 | 1.94 |
| 9 | 40 | 1.71 | 0.096 | NS | 0.27 | -0.05 | 0.58 |
| 10 | 37 | 1.89 | 0.067 | NS | 0.31 | -0.02 | 0.64 |
| Previous studies | |||||||
| combined | 496 | 3.44 | 0.001 | *** | 0.16 | 0.07 | 0.24 |
| 105 | 8.40 | <0.00 | *** | 0.82 | 0.60 | 1.04 | |
| Kulm et al. & previous studies combined | 601 | 6.64 | <0.00 | *** | 0.27 | 0.19 | 0.35 |
Note. NS indicates non-statistically significant results.
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