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

90.07%

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 10/10 642 days 37.52 100%
Helna Saumanova 10/10 1270 days true 4.66 12%
Richard 8/10 1318 days true 4.34 12%
Sabrina and Hannes 9/10 1337 days true 4.53 12%
Selma Franke 9/10 1341 days true 4.52 12%
Su Jung Han 10/10 1561 days true 4.09 11%
Fanny 9/10 1562 days true 4.09 11%
Hector Sharp 7/10 1562 days true 3.72 10%
Andre 10/10 1578 days true 4.05 11%
Sybille 10/10 1578 days true 4.05 11%
Marine 8/10 1579 days true 3.85 10%
Paul Gaylon 10/10 1582 days true 4.05 11%
Eberhard 8/10 1583 days true 3.84 10%
Adam Pulkrabek 8/10 1590 days true 3.83 10%
Olga Barathova 9/10 1590 days true 4.03 11%
Melissa Fuster 7/10 1627 days true 3.6 10%
renee verwey 9/10 1634 days 3.95 11%
Lea 8/10 1674 days true 3.67 10%
Bob Fontaine 7/10 1760 days 3.37 9%
Melvin Spear 9/10 1965 days 3.3 9%
Manuela Opprecht 10/10 1991 days 3.25 9%
Sam Bruylant 9/10 2302 days true 2.64 7%
Vera Kreipe 8/10 2322 days true 2.47 7%
Jennifer Garner 10/10 2330 days true 2.58 7%
Dana 10/10 2335 days true 2.57 7%
Frederic Gazzarin 9/10 2341 days true 2.56 7%
Patricia Gazzarin 10/10 2341 days true 2.56 7%
Ruth Watkin 9/10 2341 days true 2.56 7%
GN100 8/10 2343 days true 2.43 6%
Julia Bonisch 7/10 2360 days true 2.3 6%
Verena 9/10 2673 days true 1.91 5%
Hans 9/10 2762 days true 1.74 5%
Anne and John 9/10 2771 days true 1.72 5%
Jen Sweeting 8/10 3034 days true 1.15 3%
Duncan Mallison 7/10 3053 days true 1.06 3%
Richard Sutherland 5/10 3056 days true 0.94 3%
Graham Platt 8/10 3056 days true 1.1 3%
R E Webb 9/10 3059 days true 1.16 3%
Diana Allan 9/10 3063 days true 1.15 3%
Lepied 8/10 3063 days true 1.09 3%
Graham Swinyard 7/10 3070 days true 1.03 3%
CMJ 8/10 3107 days 1.01 3%
scampr 8/10 3107 days 1.01 3%
hendrik king 7/10 3138 days 0.91 2%
Steve Eley 9/10 3147 days true 0.98 3%
Willem & Lilian 8/10 3147 days true 0.94 2%
Curry 10/10 3150 days true 0.98 3%
Herman Plasman 8/10 3153 days true 0.92 2%
R & M Willows 10/10 3155 days true 0.97 3%
Elke & Charlotte 7/10 3158 days true 0.88 2%
Malcolm Jones 8/10 3406 days true 0.45 1%
Kimberly St Louis 10/10 3427 days true 0.44 1%
Claire Hoyland 8/10 3428 days true 0.41 1%
Cara Dungay 7/10 3429 days true 0.39 1%
John Allen 9/10 3436 days true 0.42 1%
Tanner 10/10 3436 days true 0.42 1%
John Simpson 8/10 3438 days true 0.39 1%
Nicole 10/10 3533 days 0.23 1%
Haupt 9/10 3768 days true 0.0 0%
Herrmann 9/10 3781 days true 0.0 0%
Susan & Richard 10/10 3781 days true 0.0 0%
Henrik Plichta 8/10 3787 days true 0.0 0%
Jess Laver 9/10 3791 days true 0.0 0%
Robb Howland 9/10 3802 days true 0.0 0%
Bram-Jan M 8/10 3805 days true 0.0 0%
Lamb 9/10 3805 days true 0.0 0%
Nigel Armstrong 9/10 3817 days true 0.0 0%
Ulyate 7/10 3879 days true 0.0 0%
Kaye 8/10 4112 days true 0.0 0%
Christian Troendle 9/10 4118 days true 0.0 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.