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 Waitomo TOP 10 Holiday Park.
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.
Waitomo TOP 10 Holiday Park
Valid Reviews
109 Valid Reviews
The Waitomo TOP 10 Holiday Park experience has a total of 110 reviews. There are 109 valid reviews that are included when calculating the ranking score and 1 invalid review 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 109 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
28% |
| 9/10 | 32 |
|
29% |
| 8/10 | 34 |
|
31% |
| 7/10 | 8 |
|
7% |
| 6/10 | 1 |
|
1% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 1 |
|
1% |
| 1/10 | 0 |
|
0% |
86.42% Average
The raw data average (mean) for all the Waitomo TOP 10 Holiday Park valid reviews is 86.42% and is based on 109 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
48 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 109 valid reviews, the experience has 48 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 48 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 14 |
|
29% |
| 9/10 | 16 |
|
33% |
| 8/10 | 14 |
|
29% |
| 7/10 | 4 |
|
8% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.33% Average
The raw data average (mean) for all the Waitomo TOP 10 Holiday Park face-to-face reviews is 88.33% and is based on 48 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.24%
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 |
|---|---|---|---|
| Julia Roozen | 10/10 | 181 days | 100% |
| Ben W | 8/10 | 424 days | 90% |
| RGill | 8/10 | 546 days | 83% |
| MatthiasB | 8/10 | 605 days | 79% |
| Tim Schmitter | 10/10 | 636 days | 78% |
| Millie | 8/10 | 758 days | 67% |
| Mike Fricker | 9/10 | 881 days | 56% |
| Andre | 10/10 | 971 days | 47% |
| Rob | 9/10 | 1094 days | 36% |
| Anne | 7/10 | 1124 days | 31% |
| Kawena Schuman | 9/10 | 1216 days | 26% |
| Thomas Frank | 8/10 | 1336 days | 18% |
| Simon | 8/10 | 1367 days | 17% |
| Todd Caldwell | 9/10 | 1367 days | 17% |
| Paige Hayward | 8/10 | 1398 days | 15% |
| Lothar Valentijn | 9/10 | 1428 days | 14% |
| Grumpster | 10/10 | 2616 days | 3% |
| Scooper | 8/10 | 2708 days | 3% |
| Amy Alexander | 8/10 | 2738 days | 3% |
| Megan | 7/10 | 2738 days | 3% |
| Jgcanada | 10/10 | 2797 days | 3% |
| R James | 2/10 | 2889 days | 1% |
| Deb S | 7/10 | 2920 days | 3% |
| Lee | 10/10 | 2950 days | 3% |
| Nadene Wheatley | 9/10 | 3264 days | 2% |
| Liz K | 8/10 | 3538 days | 1% |
| Scott O'Donnell | 9/10 | 3558 days | 1% |
| Geoffrey Brogden | 9/10 | 3558 days | 1% |
| lemennais perrine | 8/10 | 3558 days | 1% |
| Lavina Kerki | 8/10 | 3561 days | 1% |
| Susi Sorglos | 3/10 | 3589 days | 1% |
| Luke Young | 8/10 | 3688 days | 1% |
| Phillippa McLernon | 9/10 | 3872 days | 1% |
| Rainer Welsch | 5/10 | 3924 days | 1% |
| Jamie | 9/10 | 3963 days | 1% |
| Suzanne Vermeulen | 6/10 | 4016 days | 0% |
| Jacqui | 9/10 | 4023 days | 1% |
| Emma Keegan | 8/10 | 4199 days | 0% |
| Nicky Hurst | 10/10 | 4215 days | 0% |
| Tineke Verschueren | 9/10 | 4224 days | 0% |
| Andrew Jones | 8/10 | 4230 days | 0% |
| Florian Kleemann | 7/10 | 4244 days | 0% |
| Laurie | 10/10 | 4258 days | 0% |
| Stephen McNair | 8/10 | 4289 days | 0% |
| holidaymad from Solihull | 9/10 | 4289 days | 0% |
| Neville Smith | 8/10 | 4411 days | 1% |
| Richard | 9/10 | 4473 days | 1% |
| Family Trip | 9/10 | 4595 days | 1% |
| Glenda | 10/10 | 4623 days | 1% |
| Jake Bell | 10/10 | 4654 days | 1% |
| Paul Wood | 8/10 | 4685 days | 1% |
| Ut & Sacha | 10/10 | 4746 days | 1% |
| Kathy Hart | 10/10 | 4899 days | 1% |
| Andrew Pearce | 10/10 | 5019 days | 1% |
| Hanneke P | 8/10 | 5019 days | 1% |
| David Restell | 8/10 | 5019 days | 1% |
| Wouter Trumpie | 7/10 | 5039 days | 1% |
| Stephan Olivier | 8/10 | 5054 days | 1% |
| Stephan Olivier | 8/10 | 5054 days | 1% |
| Fam von Hattem | 8/10 | 5062 days | 1% |
| Huw Davies | 8/10 | 5300 days | 1% |
| Rob Klauer | 8/10 | 5313 days | 1% |
| Ed Trucie | 9/10 | 5320 days | 1% |
| Peter Dellen | 9/10 | 5337 days | 1% |
| Deana Peters | 8/10 | 5337 days | 1% |
| Peter Putz | 9/10 | 5339 days | 1% |
| Liz Stokes | 9/10 | 5341 days | 1% |
| Scott Simpson | 10/10 | 5342 days | 1% |
| Johannes & Katrin | 9/10 | 5353 days | 1% |
| Fabienne Indergand | 10/10 | 5420 days | 1% |
| Benjamin Meier | 8/10 | 5431 days | 1% |
| Waldemar Schuler | 10/10 | 5432 days | 1% |
| Anne Quehe | 9/10 | 5432 days | 1% |
| Tacksharp | 10/10 | 5569 days | 1% |
| Ralph & Marloes Meyers | 9/10 | 5659 days | 1% |
| lyndavid | 10/10 | 5660 days | 1% |
| Rens Hemselmans | 8/10 | 5677 days | 1% |
| J Palmer | 9/10 | 5683 days | 1% |
| Liz & Jim | 10/10 | 5685 days | 1% |
| Omar Candon | 10/10 | 5692 days | 1% |
| Annelie & Martin | 9/10 | 5695 days | 1% |
| Tobias Torax | 10/10 | 5706 days | 1% |
| Tayler Gray | 9/10 | 5706 days | 1% |
| Stefan Morris | 8/10 | 5710 days | 1% |
| Theo Dykhuizen | 10/10 | 5714 days | 1% |
| Fred | 8/10 | 5719 days | 1% |
| Carl_Larsen | 10/10 | 5995 days | 1% |
| AlisonB | 10/10 | 6025 days | 1% |
| lindam | 10/10 | 6025 days | 1% |
| marisraneth | 9/10 | 6025 days | 1% |
| Denecke Thorsten | 9/10 | 6065 days | 1% |
| Tim Stick | 8/10 | 6070 days | 1% |
| Mathias Skov | 8/10 | 6070 days | 1% |
| Daryl Taylor | 10/10 | 6077 days | 1% |
| Susan | 10/10 | 6080 days | 1% |
| Carolina Gonzalez | 10/10 | 6082 days | 1% |
| joannaw | 8/10 | 6131 days | 1% |
| pimn | 9/10 | 6140 days | 1% |
| GoodTimes | 9/10 | 6146 days | 1% |
| Furger | 10/10 | 6148 days | 1% |
| jank | 9/10 | 6237 days | 1% |
| clairet | 7/10 | 6255 days | 1% |
| Donna | 10/10 | 6301 days | 1% |
| michellew | 10/10 | 6338 days | 1% |
| KatieR | 9/10 | 6388 days | 1% |
| Steve Harper | 7/10 | 6397 days | 1% |
| NicoleG | 9/10 | 6423 days | 1% |
| Grimm | 8/10 | 6437 days | 1% |
| Chris | 7/10 | 6439 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 Waitomo TOP 10 Holiday Park experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.53% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 68 days. However the Waitomo TOP 10 Holiday Park 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 Waitomo TOP 10 Holiday Park experience has been adjusted for 157 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 154 | -2.49% |
| 155 | -2.50% |
| 156 | -2.52% |
| 157 | -2.53% |
| 158 | -2.55% |
| 159 | -2.57% |
| 160 | -2.58% |
| … | … |
Balancing Adjustment
1.88% 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
87%
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.