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
88.28%
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 | 998 days | 100% |
| Helna Saumanova | 10/10 | 1626 days | 60% |
| Richard | 8/10 | 1674 days | 55% |
| Sabrina and Hannes | 9/10 | 1693 days | 57% |
| Selma Franke | 9/10 | 1697 days | 57% |
| Su Jung Han | 10/10 | 1917 days | 50% |
| Fanny | 9/10 | 1918 days | 50% |
| Hector Sharp | 7/10 | 1918 days | 45% |
| Andre | 10/10 | 1934 days | 50% |
| Sybille | 10/10 | 1934 days | 50% |
| Marine | 8/10 | 1935 days | 47% |
| Paul Gaylon | 10/10 | 1938 days | 50% |
| Eberhard | 8/10 | 1939 days | 47% |
| Adam Pulkrabek | 8/10 | 1946 days | 47% |
| Olga Barathova | 9/10 | 1946 days | 49% |
| Melissa Fuster | 7/10 | 1983 days | 44% |
| renee verwey | 9/10 | 1990 days | 48% |
| Lea | 8/10 | 2030 days | 44% |
| Bob Fontaine | 7/10 | 2116 days | 40% |
| Melvin Spear | 9/10 | 2321 days | 38% |
| Manuela Opprecht | 10/10 | 2347 days | 37% |
| Sam Bruylant | 9/10 | 2658 days | 27% |
| Vera Kreipe | 8/10 | 2678 days | 25% |
| Jennifer Garner | 10/10 | 2686 days | 26% |
| Dana | 10/10 | 2691 days | 26% |
| Frederic Gazzarin | 9/10 | 2697 days | 26% |
| Patricia Gazzarin | 10/10 | 2697 days | 26% |
| Ruth Watkin | 9/10 | 2697 days | 26% |
| GN100 | 8/10 | 2699 days | 24% |
| Julia Bonisch | 7/10 | 2716 days | 23% |
| Verena | 9/10 | 3029 days | 16% |
| Hans | 9/10 | 3118 days | 13% |
| Anne and John | 9/10 | 3127 days | 13% |
| Jen Sweeting | 8/10 | 3390 days | 4% |
| Duncan Mallison | 7/10 | 3409 days | 3% |
| Richard Sutherland | 5/10 | 3412 days | 2% |
| Graham Platt | 8/10 | 3412 days | 3% |
| R E Webb | 9/10 | 3415 days | 3% |
| Diana Allan | 9/10 | 3419 days | 3% |
| Lepied | 8/10 | 3419 days | 3% |
| Graham Swinyard | 7/10 | 3426 days | 3% |
| CMJ | 8/10 | 3463 days | 2% |
| scampr | 8/10 | 3463 days | 2% |
| hendrik king | 7/10 | 3494 days | 1% |
| Steve Eley | 9/10 | 3503 days | 1% |
| Willem & Lilian | 8/10 | 3503 days | 0% |
| Curry | 10/10 | 3506 days | 1% |
| Herman Plasman | 8/10 | 3509 days | 0% |
| R & M Willows | 10/10 | 3511 days | 0% |
| Elke & Charlotte | 7/10 | 3514 days | 0% |
| Malcolm Jones | 8/10 | 3762 days | 11% |
| Kimberly St Louis | 10/10 | 3783 days | 12% |
| Claire Hoyland | 8/10 | 3784 days | 11% |
| Cara Dungay | 7/10 | 3785 days | 11% |
| John Allen | 9/10 | 3792 days | 12% |
| Tanner | 10/10 | 3792 days | 12% |
| John Simpson | 8/10 | 3794 days | 11% |
| Nicole | 10/10 | 3889 days | 12% |
| Haupt | 9/10 | 4124 days | 12% |
| Herrmann | 9/10 | 4137 days | 12% |
| Susan & Richard | 10/10 | 4137 days | 12% |
| Henrik Plichta | 8/10 | 4143 days | 11% |
| Jess Laver | 9/10 | 4147 days | 12% |
| Robb Howland | 9/10 | 4158 days | 12% |
| Bram-Jan M | 8/10 | 4161 days | 11% |
| Lamb | 9/10 | 4161 days | 12% |
| Nigel Armstrong | 9/10 | 4173 days | 12% |
| Ulyate | 7/10 | 4235 days | 11% |
| Kaye | 8/10 | 4468 days | 11% |
| Christian Troendle | 9/10 | 4474 days | 12% |
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.