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
88.84%
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 | 848 days | 100% |
| Helna Saumanova | 10/10 | 1476 days | 29% |
| Richard | 8/10 | 1524 days | 27% |
| Sabrina and Hannes | 9/10 | 1543 days | 28% |
| Selma Franke | 9/10 | 1547 days | 28% |
| Su Jung Han | 10/10 | 1767 days | 25% |
| Fanny | 9/10 | 1768 days | 25% |
| Hector Sharp | 7/10 | 1768 days | 23% |
| Andre | 10/10 | 1784 days | 25% |
| Sybille | 10/10 | 1784 days | 25% |
| Marine | 8/10 | 1785 days | 24% |
| Paul Gaylon | 10/10 | 1788 days | 25% |
| Eberhard | 8/10 | 1789 days | 24% |
| Adam Pulkrabek | 8/10 | 1796 days | 23% |
| Olga Barathova | 9/10 | 1796 days | 25% |
| Melissa Fuster | 7/10 | 1833 days | 22% |
| renee verwey | 9/10 | 1840 days | 24% |
| Lea | 8/10 | 1880 days | 22% |
| Bob Fontaine | 7/10 | 1966 days | 20% |
| Melvin Spear | 9/10 | 2171 days | 20% |
| Manuela Opprecht | 10/10 | 2197 days | 19% |
| Sam Bruylant | 9/10 | 2508 days | 15% |
| Vera Kreipe | 8/10 | 2528 days | 14% |
| Jennifer Garner | 10/10 | 2536 days | 15% |
| Dana | 10/10 | 2541 days | 15% |
| Frederic Gazzarin | 9/10 | 2547 days | 15% |
| Patricia Gazzarin | 10/10 | 2547 days | 15% |
| Ruth Watkin | 9/10 | 2547 days | 15% |
| GN100 | 8/10 | 2549 days | 14% |
| Julia Bonisch | 7/10 | 2566 days | 13% |
| Verena | 9/10 | 2879 days | 10% |
| Hans | 9/10 | 2968 days | 9% |
| Anne and John | 9/10 | 2977 days | 9% |
| Jen Sweeting | 8/10 | 3240 days | 5% |
| Duncan Mallison | 7/10 | 3259 days | 5% |
| Richard Sutherland | 5/10 | 3262 days | 4% |
| Graham Platt | 8/10 | 3262 days | 5% |
| R E Webb | 9/10 | 3265 days | 5% |
| Diana Allan | 9/10 | 3269 days | 5% |
| Lepied | 8/10 | 3269 days | 5% |
| Graham Swinyard | 7/10 | 3276 days | 4% |
| CMJ | 8/10 | 3313 days | 4% |
| scampr | 8/10 | 3313 days | 4% |
| hendrik king | 7/10 | 3344 days | 4% |
| Steve Eley | 9/10 | 3353 days | 4% |
| Willem & Lilian | 8/10 | 3353 days | 4% |
| Curry | 10/10 | 3356 days | 4% |
| Herman Plasman | 8/10 | 3359 days | 4% |
| R & M Willows | 10/10 | 3361 days | 4% |
| Elke & Charlotte | 7/10 | 3364 days | 3% |
| Malcolm Jones | 8/10 | 3612 days | 0% |
| Kimberly St Louis | 10/10 | 3633 days | 0% |
| Claire Hoyland | 8/10 | 3634 days | 0% |
| Cara Dungay | 7/10 | 3635 days | 0% |
| John Allen | 9/10 | 3642 days | 0% |
| Tanner | 10/10 | 3642 days | 0% |
| John Simpson | 8/10 | 3644 days | 0% |
| Nicole | 10/10 | 3739 days | 7% |
| Haupt | 9/10 | 3974 days | 7% |
| Herrmann | 9/10 | 3987 days | 7% |
| Susan & Richard | 10/10 | 3987 days | 7% |
| Henrik Plichta | 8/10 | 3993 days | 6% |
| Jess Laver | 9/10 | 3997 days | 7% |
| Robb Howland | 9/10 | 4008 days | 7% |
| Bram-Jan M | 8/10 | 4011 days | 6% |
| Lamb | 9/10 | 4011 days | 7% |
| Nigel Armstrong | 9/10 | 4023 days | 7% |
| Ulyate | 7/10 | 4085 days | 6% |
| Kaye | 8/10 | 4318 days | 6% |
| Christian Troendle | 9/10 | 4324 days | 7% |
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
89%
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.