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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

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

86.50%

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 1192 days 100%
Wilhelm Wiechel 10/10 1276 days 96%
Nienke Best 9/10 1486 days 87%
Bernd Giermann 8/10 1587 days 78%
Zak Jan 9/10 1626 days 81%
Romana Novotna 8/10 1626 days 76%
Tereza Nemeckova 10/10 1635 days 81%
Petr Sykora 8/10 1635 days 76%
Anna 8/10 1639 days 76%
Sherrie Fox 9/10 1641 days 80%
Felix 9/10 1641 days 80%
Lina Kiellamn 8/10 1642 days 76%
Marek 9/10 1673 days 79%
Kristin Pogue 8/10 1874 days 66%
Madelaine Sirch 9/10 1883 days 70%
Jonathan Maus 8/10 1887 days 66%
Lærke Hagelskjær 8/10 1894 days 65%
Alexandra Zwiers 8/10 1898 days 65%
Greta 8/10 1930 days 64%
Anna Guttle 8/10 1944 days 63%
Anais Touri 8/10 1950 days 63%
Kathanina Jasik 7/10 1956 days 60%
Ahmed Mohsen Aly 7/10 2022 days 57%
Caro G 9/10 2028 days 63%
Shona MacDonald 8/10 2599 days 36%
Sandra Frischmann 9/10 2630 days 37%
Carolin Kettler 9/10 2647 days 36%
Mirjam Betschart 4/10 2647 days 27%
Manuela Michelbach 8/10 2650 days 34%
Colin Evins 8/10 2651 days 34%
Janet Evins 8/10 2651 days 34%
F Ballard 10/10 2659 days 36%
Claire Lieval 9/10 2680 days 35%
Alan Blackburn 10/10 2723 days 33%
Christin Woelk 9/10 2962 days 22%
Dupont 7/10 3004 days 18%
Mathieu Brias 9/10 3044 days 19%
Ingrid 9/10 3070 days 18%
Sue Kieseker 9/10 3073 days 17%
Mark and Eefie 8/10 3073 days 16%
M Booty 8/10 3075 days 16%
Anne and John 9/10 3087 days 17%
Jill Boruff 10/10 3357 days 5%
Ron White 10/10 3369 days 4%
Jaap & Susanne 9/10 3372 days 4%
Lyn Deavin 7/10 3375 days 3%
Erik Poirer 10/10 3377 days 4%
Jon Winter 10/10 3378 days 4%
David & Sue Lokkerbol 10/10 3378 days 4%
Des & Ann Bidwell 10/10 3387 days 4%
Sally Rawson 8/10 3403 days 2%
David & Audrey 10/10 3469 days 0%
Steve Pearce 8/10 3733 days 13%
Derek Puplett 10/10 3733 days 14%
Belony 10/10 3744 days 14%
Andy 8/10 3744 days 13%
Forestal Youri 10/10 3749 days 14%
Gerry Nichols 10/10 3752 days 14%
Mary Van 10/10 3910 days 14%
Conny 9/10 4028 days 14%
Jesper Sch 10/10 4076 days 14%
OMPA 10/10 4082 days 14%
Janny en Bert 8/10 4084 days 13%
Peter Brown 10/10 4090 days 14%
Bob Kusesia 9/10 4095 days 14%
Johan 8/10 4096 days 13%
Jeanne Singuefreld 8/10 4104 days 13%
John Borneman 9/10 4139 days 14%
Dermot Bryne 9/10 4207 days 14%
andyge 9/10 4214 days 14%
AndyEngland 8/10 4416 days 13%
PamB 10/10 4416 days 14%
Andy Baker 10/10 4448 days 14%

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

86%

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.