Hi, 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 Tasman Holiday Parks.
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.
Christchurch Tasman Holiday Parks
Valid Reviews
136 Valid Reviews
The Christchurch Tasman Holiday Parks experience has a total of 138 reviews. There are 136 valid reviews that are included when calculating the ranking score and 2 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 136 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 17 |
|
13% |
| 9/10 | 30 |
|
22% |
| 8/10 | 35 |
|
26% |
| 7/10 | 22 |
|
16% |
| 6/10 | 15 |
|
11% |
| 5/10 | 8 |
|
6% |
| 4/10 | 3 |
|
2% |
| 3/10 | 1 |
|
1% |
| 2/10 | 2 |
|
1% |
| 1/10 | 3 |
|
2% |
75.44% Average
The raw data average (mean) for all the Christchurch Tasman Holiday Parks valid reviews is 75.44% and is based on 136 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
75 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 136 valid reviews, the experience has 75 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 75 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 12 |
|
16% |
| 9/10 | 16 |
|
21% |
| 8/10 | 20 |
|
27% |
| 7/10 | 14 |
|
19% |
| 6/10 | 7 |
|
9% |
| 5/10 | 4 |
|
5% |
| 4/10 | 2 |
|
3% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
78.93% Average
The raw data average (mean) for all the Christchurch Tasman Holiday Parks face-to-face reviews is 78.93% and is based on 75 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
77.84%
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 |
|---|---|---|---|
| Mark B | 10/10 | 323 days | 100% |
| RM | 3/10 | 385 days | 53% |
| Aoife | 9/10 | 446 days | 93% |
| Matt H | 8/10 | 903 days | 56% |
| Judy | 10/10 | 964 days | 50% |
| Miemil | 1/10 | 964 days | 20% |
| Stephanie | 1/10 | 1054 days | 17% |
| Jouke | 9/10 | 1146 days | 33% |
| Felix | 7/10 | 1815 days | 5% |
| Andrew Hammond | 8/10 | 2302 days | 4% |
| Lisanne | 4/10 | 2425 days | 3% |
| Kate | 7/10 | 2425 days | 4% |
| Beth | 9/10 | 2515 days | 4% |
| Regina | 8/10 | 2546 days | 4% |
| Angela | 8/10 | 2638 days | 4% |
| Ray Tombs | 9/10 | 2821 days | 3% |
| Michael McMahon | 10/10 | 2821 days | 3% |
| Shira LA | 9/10 | 2880 days | 3% |
| Claire Hodges | 6/10 | 2890 days | 3% |
| Alecsandra Dimofte | 6/10 | 2924 days | 3% |
| Emilie Krasowski | 8/10 | 2930 days | 3% |
| Gary Prescot | 7/10 | 3005 days | 3% |
| Vanessa Stubbs | 8/10 | 3028 days | 3% |
| c mccabe | 8/10 | 3063 days | 3% |
| Chris Nugent | 6/10 | 3146 days | 2% |
| Francis Williams | 9/10 | 3260 days | 2% |
| Luke Young | 9/10 | 3419 days | 2% |
| Aaron Gunning | 5/10 | 3578 days | 1% |
| Jane Louise Stokes | 9/10 | 3596 days | 2% |
| Glinys Weller | 9/10 | 3622 days | 2% |
| Jean marc Daubenfeld | 8/10 | 3636 days | 2% |
| Dennis Biedermann | 5/10 | 3733 days | 1% |
| Melissa Darlington | 10/10 | 3738 days | 1% |
| Stephanie | 9/10 | 3874 days | 1% |
| Erica b | 5/10 | 3916 days | 1% |
| Sam Smith | 8/10 | 3947 days | 1% |
| Andrew Cruickshank | 9/10 | 3947 days | 1% |
| Nonrev | 8/10 | 3975 days | 1% |
| Nina Müller | 6/10 | 3975 days | 1% |
| Kim Frey | 6/10 | 4011 days | 1% |
| Bjorn Privat | 2/10 | 4029 days | 0% |
| neil holdaway | 6/10 | 4037 days | 1% |
| Jacques Revel | 6/10 | 4283 days | 0% |
| Matusala Habtemariam | 8/10 | 4337 days | 0% |
| B D | 6/10 | 4341 days | 0% |
| sreve | 6/10 | 4371 days | 0% |
| Andrew Cattanach | 6/10 | 4372 days | 0% |
| GARRYBLOWER | 9/10 | 4403 days | 1% |
| Alan Blackburn | 7/10 | 4403 days | 1% |
| PipandJon | 5/10 | 4433 days | 1% |
| Stewart Littleford | 9/10 | 4493 days | 1% |
| Grantygrant | 7/10 | 4647 days | 1% |
| ramy | 2/10 | 4647 days | 0% |
| Patrycja Polakowska | 8/10 | 4688 days | 1% |
| Willem de Jong | 9/10 | 4699 days | 1% |
| Michael Nolan | 8/10 | 4706 days | 1% |
| Stripeyfish | 1/10 | 4737 days | 0% |
| Rob | 6/10 | 4754 days | 1% |
| Fred and Carin | 6/10 | 4757 days | 1% |
| Urs Kloter | 9/10 | 4759 days | 1% |
| Toby Clark | 9/10 | 5035 days | 1% |
| launch | 7/10 | 5043 days | 1% |
| Richard and Janet | 7/10 | 5046 days | 1% |
| Jeltje | 6/10 | 5052 days | 1% |
| Josef | 7/10 | 5053 days | 1% |
| Jim Addicott | 4/10 | 5056 days | 1% |
| Jim Delacruz | 8/10 | 5058 days | 1% |
| Horst Langstein | 8/10 | 5065 days | 1% |
| Frank Krivauek | 5/10 | 5066 days | 1% |
| Thyg Lingdal | 9/10 | 5071 days | 1% |
| Colin Jenkins | 7/10 | 5083 days | 1% |
| Herbert | 9/10 | 5085 days | 1% |
| Jackie & Ray | 10/10 | 5085 days | 1% |
| Fred Saunders | 10/10 | 5098 days | 1% |
| CMJ | 8/10 | 5103 days | 1% |
| Harry Simpson | 6/10 | 5141 days | 1% |
| Ruth & Derrick | 6/10 | 5147 days | 1% |
| Peter Spooner | 9/10 | 5151 days | 1% |
| Tamara | 8/10 | 5164 days | 1% |
| Jason Ritenour | 8/10 | 5224 days | 1% |
| qofd | 8/10 | 5347 days | 1% |
| Ilse & Thys | 7/10 | 5392 days | 1% |
| Victoria Boolsen | 10/10 | 5401 days | 1% |
| Malin Emanuelsson | 8/10 | 5412 days | 1% |
| Brian Clothier | 10/10 | 5413 days | 1% |
| D Hoekstra | 8/10 | 5432 days | 1% |
| Gerry Nichols | 9/10 | 5432 days | 1% |
| Mr & Mrs Winter | 9/10 | 5432 days | 1% |
| H Schepers | 8/10 | 5433 days | 1% |
| hendrik king | 7/10 | 5468 days | 1% |
| Mikeminch | 8/10 | 5499 days | 1% |
| kristy | 9/10 | 5560 days | 1% |
| Andrew Hammond | 9/10 | 5560 days | 1% |
| Zac Morris | 10/10 | 5589 days | 1% |
| Don & Geraldine | 7/10 | 5749 days | 1% |
| Brett & Tanille | 10/10 | 5762 days | 1% |
| Janny en Bert | 8/10 | 5764 days | 1% |
| Westermann | 4/10 | 5765 days | 1% |
| Shirley C | 8/10 | 5766 days | 1% |
| Pam Know | 5/10 | 5769 days | 1% |
| Colin Daniels | 5/10 | 5776 days | 1% |
| Janny Meerdinnk Veldboow | 8/10 | 5780 days | 1% |
| Bert Tonwen | 8/10 | 5783 days | 1% |
| Dale King | 7/10 | 5783 days | 1% |
| Dieter Groscurth | 8/10 | 5784 days | 1% |
| Gordon and Joyce | 10/10 | 5784 days | 1% |
| Yona | 7/10 | 5788 days | 1% |
| Pascal Auber | 10/10 | 5788 days | 1% |
| Silvia Kern | 9/10 | 5796 days | 1% |
| R Gilge | 9/10 | 5798 days | 1% |
| Nicole | 9/10 | 5799 days | 1% |
| Frances Hay | 7/10 | 5801 days | 1% |
| Paul Frew | 7/10 | 5811 days | 1% |
| Catherine Clavel | 7/10 | 5811 days | 1% |
| John J | 8/10 | 5816 days | 1% |
| Heino keyssler | 10/10 | 5822 days | 1% |
| middendorp | 8/10 | 5848 days | 1% |
| Robbertsen | 7/10 | 5856 days | 1% |
| Kirsty McGrath | 8/10 | 5868 days | 1% |
| Simon Bartholomew | 9/10 | 5876 days | 1% |
| Daniel Alonso | 10/10 | 5876 days | 1% |
| Ana Garcia | 10/10 | 5877 days | 1% |
| X Neils | 8/10 | 5886 days | 1% |
| Emily and Alex | 8/10 | 5891 days | 1% |
| PatH | 10/10 | 5908 days | 1% |
| Kazmeister | 7/10 | 6046 days | 1% |
| Johnnie | 8/10 | 6088 days | 1% |
| RussC | 7/10 | 6099 days | 1% |
| SteveB | 5/10 | 6108 days | 1% |
| Becca1 | 10/10 | 6110 days | 1% |
| RonB | 7/10 | 6120 days | 1% |
| Christine | 8/10 | 6121 days | 1% |
| LucyPoland | 9/10 | 6128 days | 1% |
| Suzie Lechner | 9/10 | 6128 days | 1% |
| ChrisWeb | 7/10 | 6142 days | 1% |
| VolkerS | 9/10 | 6142 days | 1% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Christchurch Tasman Holiday Parks experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.04% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 days. However the Christchurch Tasman Holiday Parks experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Christchurch Tasman Holiday Parks experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.98% |
| 198 | -4.00% |
| 199 | -4.02% |
| 200 | -4.04% |
| 201 | -4.06% |
| 202 | -4.08% |
| 203 | -4.10% |
| … | … |
Balancing Adjustment
5.14% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
79%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.