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 Christchurch 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.

Cymen Crick's avatar

Cymen Crick

Christchurch Botanic Gardens

Valid Reviews

73 Valid Reviews

The Christchurch Botanic Gardens experience has a total of 73 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 73 valid reviews:

Rating Count Percentage
10/10 22
30%
9/10 21
29%
8/10 25
34%
7/10 4
5%
6/10 0
0%
5/10 0
0%
4/10 1
1%
3/10 0
0%
2/10 0
0%
1/10 0
0%

87.81% Average

The raw data average (mean) for all the Christchurch Botanic Gardens valid reviews is 87.81% and is based on 73 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

66 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 73 valid reviews, the experience has 66 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 66 face-to-face reviews:

Rating Count Percentage
10/10 19
29%
9/10 18
27%
8/10 25
38%
7/10 3
5%
6/10 0
0%
5/10 0
0%
4/10 1
2%
3/10 0
0%
2/10 0
0%
1/10 0
0%

87.42% Average

The raw data average (mean) for all the Christchurch Botanic Gardens face-to-face reviews is 87.42% and is based on 66 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

87.28%

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
Sophie R 10/10 1565 days 100%
Wilhelm Wiechel 10/10 1649 days 96%
Nienke Best 9/10 1859 days 84%
Bernd Giermann 8/10 1960 days 75%
Zak Jan 9/10 1999 days 77%
Romana Novotna 8/10 1999 days 73%
Tereza Nemeckova 10/10 2008 days 77%
Petr Sykora 8/10 2008 days 72%
Anna 8/10 2012 days 72%
Sherrie Fox 9/10 2014 days 76%
Felix 9/10 2014 days 76%
Lina Kiellamn 8/10 2015 days 72%
Marek 9/10 2046 days 75%
Kristin Pogue 8/10 2247 days 60%
Madelaine Sirch 9/10 2256 days 64%
Jonathan Maus 8/10 2260 days 60%
Lærke Hagelskjær 8/10 2267 days 59%
Alexandra Zwiers 8/10 2271 days 59%
Greta 8/10 2303 days 58%
Anna Guttle 8/10 2317 days 57%
Anais Touri 8/10 2323 days 56%
Kathanina Jasik 7/10 2329 days 53%
Ahmed Mohsen Aly 7/10 2395 days 50%
Caro G 9/10 2401 days 56%
Shona MacDonald 8/10 2972 days 24%
Sandra Frischmann 9/10 3003 days 24%
Carolin Kettler 9/10 3020 days 23%
Mirjam Betschart 4/10 3020 days 16%
Manuela Michelbach 8/10 3023 days 21%
Colin Evins 8/10 3024 days 21%
Janet Evins 8/10 3024 days 21%
F Ballard 10/10 3032 days 23%
Claire Lieval 9/10 3053 days 21%
Alan Blackburn 10/10 3096 days 19%
Christin Woelk 9/10 3335 days 7%
Dupont 7/10 3377 days 3%
Mathieu Brias 9/10 3417 days 2%
Ingrid 9/10 3443 days 1%
Sue Kieseker 9/10 3446 days 1%
Mark and Eefie 8/10 3446 days 0%
M Booty 8/10 3448 days 0%
Anne and John 9/10 3460 days 0%
Jill Boruff 10/10 3730 days 17%
Ron White 10/10 3742 days 17%
Jaap & Susanne 9/10 3745 days 17%
Lyn Deavin 7/10 3748 days 15%
Erik Poirer 10/10 3750 days 17%
Jon Winter 10/10 3751 days 17%
David & Sue Lokkerbol 10/10 3751 days 17%
Des & Ann Bidwell 10/10 3760 days 17%
Sally Rawson 8/10 3776 days 16%
David & Audrey 10/10 3842 days 17%
Steve Pearce 8/10 4106 days 16%
Derek Puplett 10/10 4106 days 17%
Belony 10/10 4117 days 17%
Andy 8/10 4117 days 16%
Forestal Youri 10/10 4122 days 17%
Gerry Nichols 10/10 4125 days 17%
Mary Van 10/10 4283 days 17%
Conny 9/10 4401 days 17%
Jesper Sch 10/10 4449 days 17%
OMPA 10/10 4455 days 17%
Janny en Bert 8/10 4457 days 16%
Peter Brown 10/10 4463 days 17%
Bob Kusesia 9/10 4468 days 17%
Johan 8/10 4469 days 16%
Jeanne Singuefreld 8/10 4477 days 16%
John Borneman 9/10 4512 days 17%
Dermot Bryne 9/10 4580 days 17%
andyge 9/10 4587 days 17%
AndyEngland 8/10 4789 days 16%
PamB 10/10 4789 days 17%
Andy Baker 10/10 4821 days 17%

Adjustments

No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Christchurch Botanic Gardens does not meet the criteria for any of these adjustments to apply.

Final Ranking Score

87%

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.