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

90.87%

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 10/10 353 days 80.25 100%
Helna Saumanova 10/10 981 days true 7.06 8%
Richard 8/10 1029 days true 5.41 6%
Sabrina and Hannes 9/10 1048 days true 5.35 6%
Selma Franke 9/10 1052 days true 5.29 6%
Su Jung Han 10/10 1272 days true 4.7 5%
Fanny 9/10 1273 days true 4.7 5%
Hector Sharp 7/10 1273 days true 4.27 5%
Andre 10/10 1289 days true 4.67 5%
Sybille 10/10 1289 days true 4.67 5%
Marine 8/10 1290 days true 4.43 5%
Paul Gaylon 10/10 1293 days true 4.66 5%
Eberhard 8/10 1294 days true 4.43 5%
Adam Pulkrabek 8/10 1301 days true 4.41 5%
Olga Barathova 9/10 1301 days true 4.65 5%
Melissa Fuster 7/10 1338 days true 4.17 5%
renee verwey 9/10 1345 days 4.57 5%
Lea 8/10 1385 days true 4.28 5%
Bob Fontaine 7/10 1471 days 3.96 5%
Melvin Spear 9/10 1676 days 4.01 5%
Manuela Opprecht 10/10 1702 days 3.96 5%
Sam Bruylant 9/10 2013 days true 3.43 4%
Vera Kreipe 8/10 2033 days true 3.22 4%
Jennifer Garner 10/10 2041 days true 3.38 4%
Dana 10/10 2046 days true 3.37 4%
Frederic Gazzarin 9/10 2052 days true 3.36 4%
Patricia Gazzarin 10/10 2052 days true 3.36 4%
Ruth Watkin 9/10 2052 days true 3.36 4%
GN100 8/10 2054 days true 3.19 4%
Julia Bonisch 7/10 2071 days true 3.03 3%
Verena 9/10 2384 days true 2.79 3%
Hans 9/10 2473 days true 2.64 3%
Anne and John 9/10 2482 days true 2.63 3%
Jen Sweeting 8/10 2745 days true 2.07 2%
Duncan Mallison 7/10 2764 days true 1.95 2%
Richard Sutherland 5/10 2767 days true 1.73 2%
Graham Platt 8/10 2767 days true 2.03 2%
R E Webb 9/10 2770 days true 2.13 2%
Diana Allan 9/10 2774 days true 2.13 2%
Lepied 8/10 2774 days true 2.02 2%
Graham Swinyard 7/10 2781 days true 1.92 2%
CMJ 8/10 2818 days 1.95 2%
scampr 8/10 2818 days 1.95 2%
hendrik king 7/10 2849 days 1.82 2%
Steve Eley 9/10 2858 days true 1.98 2%
Willem & Lilian 8/10 2858 days true 1.88 2%
Curry 10/10 2861 days true 1.98 2%
Herman Plasman 8/10 2864 days true 1.87 2%
R & M Willows 10/10 2866 days true 1.97 2%
Elke & Charlotte 7/10 2869 days true 1.79 2%
Malcolm Jones 8/10 3117 days true 1.46 1%
Kimberly St Louis 10/10 3138 days true 1.5 1%
Claire Hoyland 8/10 3139 days true 1.43 1%
Cara Dungay 7/10 3140 days true 1.36 1%
John Allen 9/10 3147 days true 1.49 1%
Tanner 10/10 3147 days true 1.49 1%
John Simpson 8/10 3149 days true 1.41 1%
Nicole 10/10 3244 days 1.32 1%
Haupt 9/10 3479 days true 0.92 1%
Herrmann 9/10 3492 days true 0.9 1%
Susan & Richard 10/10 3492 days true 0.9 1%
Henrik Plichta 8/10 3498 days true 0.84 1%
Jess Laver 9/10 3502 days true 0.88 1%
Robb Howland 9/10 3513 days true 0.86 1%
Bram-Jan M 8/10 3516 days true 0.81 1%
Lamb 9/10 3516 days true 0.85 1%
Nigel Armstrong 9/10 3528 days true 0.83 1%
Ulyate 7/10 3590 days true 0.66 0%
Kaye 8/10 3823 days true 0.31 0%
Christian Troendle 9/10 3829 days true 0.32 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

91%

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.