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 Portobello Village Tourist 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.
Portobello Village Tourist Park
Valid Reviews
113 Valid Reviews
The Portobello Village Tourist Park experience has a total of 113 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 113 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 15 |
|
13% |
| 9/10 | 25 |
|
22% |
| 8/10 | 34 |
|
30% |
| 7/10 | 19 |
|
17% |
| 6/10 | 14 |
|
12% |
| 5/10 | 3 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 2 |
|
2% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
78.41% Average
The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 78.41% and is based on 113 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
30 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 113 valid reviews, the experience has 30 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 30 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 6 |
|
20% |
| 9/10 | 7 |
|
23% |
| 8/10 | 9 |
|
30% |
| 7/10 | 3 |
|
10% |
| 6/10 | 3 |
|
10% |
| 5/10 | 1 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
3% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
80.67% Average
The raw data average (mean) for all the Portobello Village Tourist Park face-to-face reviews is 80.67% and is based on 30 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
80.45%
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 |
|---|---|---|---|
| cirefice bernard | 7/10 | 141 days | 96% |
| Paul | 8/10 | 202 days | 100% |
| Rich | 7/10 | 294 days | 92% |
| Eline | 6/10 | 385 days | 82% |
| Laurie | 9/10 | 416 days | 93% |
| Hannah | 10/10 | 444 days | 93% |
| Shaun | 10/10 | 444 days | 93% |
| Anne | 8/10 | 475 days | 89% |
| Fredrik | 6/10 | 475 days | 78% |
| Nicolas | 7/10 | 567 days | 79% |
| Hayley | 9/10 | 628 days | 80% |
| Lindsay Byrnes | 8/10 | 750 days | 70% |
| Fabienne | 8/10 | 781 days | 67% |
| Ian Garcia | 8/10 | 810 days | 64% |
| Tine Warner | 9/10 | 841 days | 62% |
| Joel Fryett | 6/10 | 841 days | 54% |
| Loam | 6/10 | 841 days | 54% |
| M.K. | 9/10 | 933 days | 52% |
| Ryli West | 8/10 | 1116 days | 34% |
| Steve | 9/10 | 1147 days | 32% |
| Jake | 10/10 | 1175 days | 30% |
| Arie | 7/10 | 1206 days | 26% |
| Julia | 9/10 | 1237 days | 26% |
| Debby | 9/10 | 1267 days | 24% |
| Lothar Valentijn | 10/10 | 1267 days | 24% |
| Sarah | 9/10 | 1267 days | 24% |
| Colin | 8/10 | 1298 days | 21% |
| Lisa | 10/10 | 1420 days | 15% |
| Anne S | 9/10 | 1512 days | 11% |
| Ana and Rob | 8/10 | 2089 days | 5% |
| Sandy | 9/10 | 2120 days | 5% |
| Maria | 6/10 | 2242 days | 4% |
| M&P | 8/10 | 2271 days | 4% |
| Tom Z. | 9/10 | 2302 days | 4% |
| Tea | 8/10 | 2333 days | 4% |
| Sue W | 8/10 | 2363 days | 4% |
| Maryline | 9/10 | 2577 days | 4% |
| Esa | 7/10 | 2608 days | 3% |
| Vincent | 9/10 | 2608 days | 4% |
| TP&MM | 8/10 | 2608 days | 4% |
| Chantal | 10/10 | 2698 days | 3% |
| James & Kerry | 9/10 | 2728 days | 3% |
| Melinda Pyke | 8/10 | 2789 days | 3% |
| Grizzly Girl | 8/10 | 2789 days | 3% |
| Esteban | 8/10 | 2942 days | 3% |
| Bridget Cumming | 7/10 | 2980 days | 3% |
| M A Pelton | 10/10 | 2983 days | 3% |
| UK 50-something couple | 8/10 | 3001 days | 3% |
| Suzanne Wijsman | 9/10 | 3009 days | 3% |
| Sandra Jeffers | 6/10 | 3109 days | 2% |
| Howard Morris | 8/10 | 3125 days | 3% |
| Geoff Steele | 7/10 | 3153 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3380 days | 2% |
| sara hoeflaken | 8/10 | 3394 days | 2% |
| Roeland Driessen | 8/10 | 3396 days | 2% |
| Cyrielle Vallat | 6/10 | 3452 days | 2% |
| Susan H | 10/10 | 3491 days | 2% |
| Ruth Hernandez | 8/10 | 3493 days | 2% |
| Kate | 8/10 | 3626 days | 1% |
| Joanna du Toit | 7/10 | 3783 days | 1% |
| Yvonne Wu | 8/10 | 4007 days | 1% |
| Soizic Vandermeersch | 7/10 | 4030 days | 1% |
| Rossco | 6/10 | 4037 days | 1% |
| Erica b | 7/10 | 4037 days | 1% |
| Larry Dashiell | 9/10 | 4068 days | 1% |
| June Harris | 6/10 | 4127 days | 0% |
| Matthias Thorn | 7/10 | 4127 days | 0% |
| Richard | 8/10 | 4312 days | 0% |
| travelscot | 9/10 | 4373 days | 0% |
| Patricia Revel | 9/10 | 4404 days | 1% |
| Katarina | 10/10 | 4405 days | 1% |
| Gillian Scott | 7/10 | 4432 days | 1% |
| Julie Robinson | 7/10 | 4449 days | 1% |
| Julien de la lande | 6/10 | 4475 days | 1% |
| Wouter Bosch | 7/10 | 4475 days | 1% |
| Aude Moulin | 5/10 | 4475 days | 1% |
| Maya Bakker-deDreu | 8/10 | 4483 days | 1% |
| JoMary Smith | 8/10 | 4493 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4524 days | 1% |
| Grantygrant | 7/10 | 4768 days | 1% |
| Bertiethebus | 8/10 | 4799 days | 1% |
| Kadyan | 6/10 | 4799 days | 1% |
| Malgorzata | 6/10 | 4803 days | 1% |
| Moni Sangoi | 7/10 | 4827 days | 1% |
| Puma17 | 7/10 | 4858 days | 1% |
| David | 5/10 | 4858 days | 1% |
| Auger | 10/10 | 4896 days | 1% |
| Auger | 10/10 | 4896 days | 1% |
| Mike & Jennie | 8/10 | 5175 days | 1% |
| Balonno | 3/10 | 5224 days | 1% |
| lydzb | 6/10 | 5255 days | 1% |
| ncopas | 1/10 | 5255 days | 0% |
| Annie Breton | 6/10 | 5513 days | 1% |
| Robin Smith | 10/10 | 5516 days | 1% |
| Jim & Rebecca | 9/10 | 5522 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5523 days | 1% |
| Chris | 8/10 | 5524 days | 1% |
| LandJ | 9/10 | 5530 days | 1% |
| Manfred & Gabi | 9/10 | 5541 days | 1% |
| Frank Lehe | 8/10 | 5543 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5546 days | 1% |
| Roy Seymour | 8/10 | 5549 days | 1% |
| Sabine | 9/10 | 5808 days | 1% |
| Anna | 9/10 | 5813 days | 1% |
| Siebels Wilke | 8/10 | 5827 days | 1% |
| Peter Aerborg | 9/10 | 5831 days | 1% |
| Peter Brown | 10/10 | 5891 days | 1% |
| John Cox | 8/10 | 5901 days | 1% |
| Helmet Paula | 3/10 | 5908 days | 0% |
| Lorena | 10/10 | 5923 days | 1% |
| Alexis De Wilde | 9/10 | 5995 days | 1% |
| Decuq | 7/10 | 5996 days | 1% |
| Vivien Williams | 10/10 | 6247 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 Portobello Village Tourist Park experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-1.87% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 70 days. However the Portobello Village Tourist 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 Portobello Village Tourist Park experience has been adjusted for 112 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 109 | -1.82% |
| 110 | -1.83% |
| 111 | -1.85% |
| 112 | -1.87% |
| 113 | -1.88% |
| 114 | -1.90% |
| 115 | -1.92% |
| … | … |
Balancing Adjustment
3.41% 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
82%
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.