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
87.27%
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 | 202 days | 100% |
| Ben W | 8/10 | 445 days | 89% |
| RGill | 8/10 | 567 days | 82% |
| MatthiasB | 8/10 | 626 days | 78% |
| Tim Schmitter | 10/10 | 657 days | 77% |
| Millie | 8/10 | 779 days | 66% |
| Mike Fricker | 9/10 | 902 days | 54% |
| Andre | 10/10 | 992 days | 46% |
| Rob | 9/10 | 1115 days | 34% |
| Anne | 7/10 | 1145 days | 30% |
| Kawena Schuman | 9/10 | 1237 days | 25% |
| Thomas Frank | 8/10 | 1357 days | 17% |
| Simon | 8/10 | 1388 days | 16% |
| Todd Caldwell | 9/10 | 1388 days | 16% |
| Paige Hayward | 8/10 | 1419 days | 14% |
| Lothar Valentijn | 9/10 | 1449 days | 13% |
| Grumpster | 10/10 | 2637 days | 3% |
| Scooper | 8/10 | 2729 days | 3% |
| Amy Alexander | 8/10 | 2759 days | 3% |
| Megan | 7/10 | 2759 days | 3% |
| Jgcanada | 10/10 | 2818 days | 3% |
| R James | 2/10 | 2910 days | 1% |
| Deb S | 7/10 | 2941 days | 3% |
| Lee | 10/10 | 2971 days | 3% |
| Nadene Wheatley | 9/10 | 3285 days | 2% |
| Liz K | 8/10 | 3559 days | 1% |
| Scott O'Donnell | 9/10 | 3578 days | 1% |
| Geoffrey Brogden | 9/10 | 3578 days | 1% |
| lemennais perrine | 8/10 | 3578 days | 1% |
| Lavina Kerki | 8/10 | 3582 days | 1% |
| Susi Sorglos | 3/10 | 3609 days | 1% |
| Luke Young | 8/10 | 3709 days | 1% |
| Phillippa McLernon | 9/10 | 3893 days | 1% |
| Rainer Welsch | 5/10 | 3945 days | 1% |
| Jamie | 9/10 | 3984 days | 1% |
| Suzanne Vermeulen | 6/10 | 4036 days | 0% |
| Jacqui | 9/10 | 4044 days | 1% |
| Emma Keegan | 8/10 | 4219 days | 0% |
| Nicky Hurst | 10/10 | 4236 days | 0% |
| Tineke Verschueren | 9/10 | 4245 days | 0% |
| Andrew Jones | 8/10 | 4250 days | 0% |
| Florian Kleemann | 7/10 | 4265 days | 0% |
| Laurie | 10/10 | 4278 days | 0% |
| Stephen McNair | 8/10 | 4309 days | 0% |
| holidaymad from Solihull | 9/10 | 4309 days | 0% |
| Neville Smith | 8/10 | 4431 days | 1% |
| Richard | 9/10 | 4494 days | 1% |
| Family Trip | 9/10 | 4616 days | 1% |
| Glenda | 10/10 | 4644 days | 1% |
| Jake Bell | 10/10 | 4675 days | 1% |
| Paul Wood | 8/10 | 4706 days | 1% |
| Ut & Sacha | 10/10 | 4767 days | 1% |
| Kathy Hart | 10/10 | 4920 days | 1% |
| Andrew Pearce | 10/10 | 5040 days | 1% |
| Hanneke P | 8/10 | 5040 days | 1% |
| David Restell | 8/10 | 5040 days | 1% |
| Wouter Trumpie | 7/10 | 5060 days | 1% |
| Stephan Olivier | 8/10 | 5075 days | 1% |
| Stephan Olivier | 8/10 | 5075 days | 1% |
| Fam von Hattem | 8/10 | 5083 days | 1% |
| Huw Davies | 8/10 | 5321 days | 1% |
| Rob Klauer | 8/10 | 5334 days | 1% |
| Ed Trucie | 9/10 | 5341 days | 1% |
| Peter Dellen | 9/10 | 5358 days | 1% |
| Deana Peters | 8/10 | 5358 days | 1% |
| Peter Putz | 9/10 | 5360 days | 1% |
| Liz Stokes | 9/10 | 5362 days | 1% |
| Scott Simpson | 10/10 | 5363 days | 1% |
| Johannes & Katrin | 9/10 | 5374 days | 1% |
| Fabienne Indergand | 10/10 | 5441 days | 1% |
| Benjamin Meier | 8/10 | 5452 days | 1% |
| Waldemar Schuler | 10/10 | 5453 days | 1% |
| Anne Quehe | 9/10 | 5453 days | 1% |
| Tacksharp | 10/10 | 5590 days | 1% |
| Ralph & Marloes Meyers | 9/10 | 5680 days | 1% |
| lyndavid | 10/10 | 5681 days | 1% |
| Rens Hemselmans | 8/10 | 5698 days | 1% |
| J Palmer | 9/10 | 5704 days | 1% |
| Liz & Jim | 10/10 | 5706 days | 1% |
| Omar Candon | 10/10 | 5713 days | 1% |
| Annelie & Martin | 9/10 | 5716 days | 1% |
| Tobias Torax | 10/10 | 5727 days | 1% |
| Tayler Gray | 9/10 | 5727 days | 1% |
| Stefan Morris | 8/10 | 5731 days | 1% |
| Theo Dykhuizen | 10/10 | 5735 days | 1% |
| Fred | 8/10 | 5740 days | 1% |
| Carl_Larsen | 10/10 | 6016 days | 1% |
| AlisonB | 10/10 | 6046 days | 1% |
| lindam | 10/10 | 6046 days | 1% |
| marisraneth | 9/10 | 6046 days | 1% |
| Denecke Thorsten | 9/10 | 6086 days | 1% |
| Tim Stick | 8/10 | 6091 days | 1% |
| Mathias Skov | 8/10 | 6091 days | 1% |
| Daryl Taylor | 10/10 | 6098 days | 1% |
| Susan | 10/10 | 6101 days | 1% |
| Carolina Gonzalez | 10/10 | 6103 days | 1% |
| joannaw | 8/10 | 6152 days | 1% |
| pimn | 9/10 | 6161 days | 1% |
| GoodTimes | 9/10 | 6167 days | 1% |
| Furger | 10/10 | 6169 days | 1% |
| jank | 9/10 | 6258 days | 1% |
| clairet | 7/10 | 6276 days | 1% |
| Donna | 10/10 | 6322 days | 1% |
| michellew | 10/10 | 6359 days | 1% |
| KatieR | 9/10 | 6409 days | 1% |
| Steve Harper | 7/10 | 6418 days | 1% |
| NicoleG | 9/10 | 6444 days | 1% |
| Grimm | 8/10 | 6458 days | 1% |
| Chris | 7/10 | 6460 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
-3.24% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 177 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 174 | -3.18% |
| 175 | -3.20% |
| 176 | -3.22% |
| 177 | -3.24% |
| 178 | -3.26% |
| 179 | -3.27% |
| 180 | -3.29% |
| … | … |
Balancing Adjustment
2.02% 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
86%
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.