Ranking Score Explained
Hi there, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Wellington Botanic Gardens.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Wellington Botanic Gardens
Valid Reviews
70 Valid Reviews
The Wellington Botanic Gardens experience has a total of 70 valid reviews. There are no invalid reviews that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 70 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 16 |
|
23% |
| 9/10 | 23 |
|
33% |
| 8/10 | 20 |
|
29% |
| 7/10 | 10 |
|
14% |
| 6/10 | 0 |
|
0% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.00% Average
The raw data average (mean) for all the Wellington Botanic Gardens valid reviews is 86.00% and is based on 70 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
61 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 70 valid reviews, the experience has 61 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 61 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 13 |
|
21% |
| 9/10 | 21 |
|
34% |
| 8/10 | 18 |
|
30% |
| 7/10 | 8 |
|
13% |
| 6/10 | 0 |
|
0% |
| 5/10 | 1 |
|
2% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
85.90% Average
The raw data average (mean) for all the Wellington Botanic Gardens face-to-face reviews is 85.90% and is based on 61 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
88.37%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Mike Fricker | 10/10 | 1153 days | 100% |
| Helna Saumanova | 10/10 | 1781 days | 75% |
| Richard | 8/10 | 1829 days | 69% |
| Sabrina and Hannes | 9/10 | 1848 days | 72% |
| Selma Franke | 9/10 | 1852 days | 72% |
| Su Jung Han | 10/10 | 2072 days | 63% |
| Fanny | 9/10 | 2073 days | 63% |
| Hector Sharp | 7/10 | 2073 days | 57% |
| Andre | 10/10 | 2089 days | 63% |
| Sybille | 10/10 | 2089 days | 63% |
| Marine | 8/10 | 2090 days | 59% |
| Paul Gaylon | 10/10 | 2093 days | 62% |
| Eberhard | 8/10 | 2094 days | 59% |
| Adam Pulkrabek | 8/10 | 2101 days | 59% |
| Olga Barathova | 9/10 | 2101 days | 62% |
| Melissa Fuster | 7/10 | 2138 days | 55% |
| renee verwey | 9/10 | 2145 days | 60% |
| Lea | 8/10 | 2185 days | 56% |
| Bob Fontaine | 7/10 | 2271 days | 50% |
| Melvin Spear | 9/10 | 2476 days | 47% |
| Manuela Opprecht | 10/10 | 2502 days | 46% |
| Sam Bruylant | 9/10 | 2813 days | 33% |
| Vera Kreipe | 8/10 | 2833 days | 31% |
| Jennifer Garner | 10/10 | 2841 days | 32% |
| Dana | 10/10 | 2846 days | 32% |
| Frederic Gazzarin | 9/10 | 2852 days | 32% |
| Patricia Gazzarin | 10/10 | 2852 days | 32% |
| Ruth Watkin | 9/10 | 2852 days | 32% |
| GN100 | 8/10 | 2854 days | 30% |
| Julia Bonisch | 7/10 | 2871 days | 28% |
| Verena | 9/10 | 3184 days | 19% |
| Hans | 9/10 | 3273 days | 15% |
| Anne and John | 9/10 | 3282 days | 15% |
| Jen Sweeting | 8/10 | 3545 days | 4% |
| Duncan Mallison | 7/10 | 3564 days | 3% |
| Richard Sutherland | 5/10 | 3567 days | 3% |
| Graham Platt | 8/10 | 3567 days | 3% |
| R E Webb | 9/10 | 3570 days | 3% |
| Diana Allan | 9/10 | 3574 days | 3% |
| Lepied | 8/10 | 3574 days | 3% |
| Graham Swinyard | 7/10 | 3581 days | 2% |
| CMJ | 8/10 | 3618 days | 1% |
| scampr | 8/10 | 3618 days | 1% |
| hendrik king | 7/10 | 3649 days | 0% |
| Steve Eley | 9/10 | 3658 days | 20% |
| Willem & Lilian | 8/10 | 3658 days | 19% |
| Curry | 10/10 | 3661 days | 20% |
| Herman Plasman | 8/10 | 3664 days | 19% |
| R & M Willows | 10/10 | 3666 days | 20% |
| Elke & Charlotte | 7/10 | 3669 days | 19% |
| Malcolm Jones | 8/10 | 3917 days | 19% |
| Kimberly St Louis | 10/10 | 3938 days | 20% |
| Claire Hoyland | 8/10 | 3939 days | 19% |
| Cara Dungay | 7/10 | 3940 days | 19% |
| John Allen | 9/10 | 3947 days | 20% |
| Tanner | 10/10 | 3947 days | 20% |
| John Simpson | 8/10 | 3949 days | 19% |
| Nicole | 10/10 | 4044 days | 20% |
| Haupt | 9/10 | 4279 days | 20% |
| Herrmann | 9/10 | 4292 days | 20% |
| Susan & Richard | 10/10 | 4292 days | 20% |
| Henrik Plichta | 8/10 | 4298 days | 19% |
| Jess Laver | 9/10 | 4302 days | 20% |
| Robb Howland | 9/10 | 4313 days | 20% |
| Bram-Jan M | 8/10 | 4316 days | 19% |
| Lamb | 9/10 | 4316 days | 20% |
| Nigel Armstrong | 9/10 | 4328 days | 20% |
| Ulyate | 7/10 | 4390 days | 19% |
| Kaye | 8/10 | 4623 days | 19% |
| Christian Troendle | 9/10 | 4629 days | 20% |
Adjustments
No Adjustment
Several adjustments to the weighted average may be added to improve relevancy and credibility. Wellington Botanic Gardens does not meet the criteria for any of these adjustments to apply.
Final Ranking Score
88%
The final ranking score once rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.