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

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.