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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

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

89.89%

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 Face-to-Face Weight Relative Weight
Mike Fricker 10/10 143 days 96.76 100%
Helna Saumanova 10/10 771 days true 25.96 25%
Richard 8/10 819 days true 20.49 20%
Sabrina and Hannes 9/10 838 days true 18.56 18%
Selma Franke 9/10 842 days true 18.17 17%
Su Jung Han 10/10 1062 days true 6.21 5%
Fanny 9/10 1063 days true 6.19 5%
Hector Sharp 7/10 1063 days true 6.19 5%
Andre 10/10 1079 days true 6.05 4%
Sybille 10/10 1079 days true 6.05 4%
Marine 8/10 1080 days true 6.04 4%
Paul Gaylon 10/10 1083 days true 6.03 4%
Eberhard 8/10 1084 days true 6.02 4%
Adam Pulkrabek 8/10 1091 days true 6.0 4%
Olga Barathova 9/10 1091 days true 6.0 4%
Melissa Fuster 7/10 1128 days true 5.95 4%
renee verwey 9/10 1135 days 4.95 3%
Lea 8/10 1175 days true 5.87 4%
Bob Fontaine 7/10 1261 days 4.77 3%
Melvin Spear 9/10 1466 days 4.49 3%
Manuela Opprecht 10/10 1492 days 4.46 3%
Sam Bruylant 9/10 1803 days true 4.84 3%
Vera Kreipe 8/10 1823 days true 4.8 3%
Jennifer Garner 10/10 1831 days true 4.79 3%
Dana 10/10 1836 days true 4.78 3%
Frederic Gazzarin 9/10 1842 days true 4.77 3%
Patricia Gazzarin 10/10 1842 days true 4.77 3%
Ruth Watkin 9/10 1842 days true 4.77 3%
GN100 8/10 1844 days true 4.77 3%
Julia Bonisch 7/10 1861 days true 4.74 3%
Verena 9/10 2174 days true 4.23 3%
Hans 9/10 2263 days true 4.08 2%
Anne and John 9/10 2272 days true 4.07 2%
Jen Sweeting 8/10 2535 days true 3.63 2%
Duncan Mallison 7/10 2554 days true 3.6 2%
Richard Sutherland 5/10 2557 days true 3.6 2%
Graham Platt 8/10 2557 days true 3.6 2%
R E Webb 9/10 2560 days true 3.59 2%
Diana Allan 9/10 2564 days true 3.59 2%
Lepied 8/10 2564 days true 3.59 2%
Graham Swinyard 7/10 2571 days true 3.57 2%
CMJ 8/10 2608 days 2.93 1%
scampr 8/10 2608 days 2.93 1%
hendrik king 7/10 2639 days 2.88 1%
Steve Eley 9/10 2648 days true 3.45 2%
Willem & Lilian 8/10 2648 days true 3.45 2%
Curry 10/10 2651 days true 3.44 2%
Herman Plasman 8/10 2654 days true 3.44 2%
R & M Willows 10/10 2656 days true 3.43 2%
Elke & Charlotte 7/10 2659 days true 3.43 2%
Malcolm Jones 8/10 2907 days true 3.02 1%
Kimberly St Louis 10/10 2928 days true 2.99 1%
Claire Hoyland 8/10 2929 days true 2.99 1%
Cara Dungay 7/10 2930 days true 2.98 1%
John Allen 9/10 2937 days true 2.97 1%
Tanner 10/10 2937 days true 2.97 1%
John Simpson 8/10 2939 days true 2.97 1%
Nicole 10/10 3034 days 2.34 1%
Haupt 9/10 3269 days true 2.43 1%
Herrmann 9/10 3282 days true 2.4 1%
Susan & Richard 10/10 3282 days true 2.4 1%
Henrik Plichta 8/10 3288 days true 2.4 1%
Jess Laver 9/10 3292 days true 2.39 1%
Robb Howland 9/10 3303 days true 2.37 1%
Bram-Jan M 8/10 3306 days true 2.37 1%
Lamb 9/10 3306 days true 2.37 1%
Nigel Armstrong 9/10 3318 days true 2.35 1%
Ulyate 7/10 3380 days true 2.24 0%
Kaye 8/10 3613 days true 1.86 0%
Christian Troendle 9/10 3619 days true 1.85 0%

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

90%

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.