Institut für Grundlagenforschung achieved a PolitPro Score of ? out of 100.
On average, Institut für Grundlagenforschung's figures deviate by 3.7 percentage points between their final pre-election polls and actual election results.
The PolitPro Election Trend serves as the benchmark, using a time-weighted average of all current surveys. A poll value is flagged if it deviates by more than one percentage point from this trend.
On average, Institut für Grundlagenforschung's figures deviate by 3.7 percentage points between their final pre-election polls and actual election results.
With an average deviation of 3.68 percentage points per party, Institut für Grundlagenforschung ranks 7 out of 7.
Accuracy indicates how closely pre-election polls aligned with actual election results. We compare final surveys from various institutes with official outcomes. To do this, we calculate the average deviation across all parties that received at least 3% of the vote. Most election polls have a standard margin of error of 2-3 percentage points. We categorize average deviations as follows: up to 1 percentage point is "very good" (green); up to 2 points is "good" (yellow); up to 3 points is "acceptable" (orange), though this may indicate significant outliers for specific parties. Deviations exceeding 3 percentage points suggest a lack of predictive power and are rated "poor" (red).
