Kia ora, 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
80.60%
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 | 80 days | 96% |
| Paul | 8/10 | 141 days | 100% |
| Rich | 7/10 | 233 days | 93% |
| Eline | 6/10 | 324 days | 84% |
| Laurie | 9/10 | 355 days | 95% |
| Hannah | 10/10 | 383 days | 95% |
| Shaun | 10/10 | 383 days | 95% |
| Anne | 8/10 | 414 days | 91% |
| Fredrik | 6/10 | 414 days | 80% |
| Nicolas | 7/10 | 506 days | 82% |
| Hayley | 9/10 | 567 days | 83% |
| Lindsay Byrnes | 8/10 | 689 days | 74% |
| Fabienne | 8/10 | 720 days | 71% |
| Ian Garcia | 8/10 | 749 days | 69% |
| Tine Warner | 9/10 | 780 days | 67% |
| Joel Fryett | 6/10 | 780 days | 58% |
| Loam | 6/10 | 780 days | 58% |
| M.K. | 9/10 | 872 days | 58% |
| Ryli West | 8/10 | 1055 days | 39% |
| Steve | 9/10 | 1086 days | 37% |
| Jake | 10/10 | 1114 days | 35% |
| Arie | 7/10 | 1145 days | 30% |
| Julia | 9/10 | 1176 days | 30% |
| Debby | 9/10 | 1206 days | 27% |
| Lothar Valentijn | 10/10 | 1206 days | 28% |
| Sarah | 9/10 | 1206 days | 27% |
| Colin | 8/10 | 1237 days | 25% |
| Lisa | 10/10 | 1359 days | 18% |
| Anne S | 9/10 | 1451 days | 13% |
| Ana and Rob | 8/10 | 2028 days | 5% |
| Sandy | 9/10 | 2059 days | 5% |
| Maria | 6/10 | 2181 days | 4% |
| M&P | 8/10 | 2210 days | 4% |
| Tom Z. | 9/10 | 2241 days | 4% |
| Tea | 8/10 | 2272 days | 4% |
| Sue W | 8/10 | 2302 days | 4% |
| Maryline | 9/10 | 2516 days | 4% |
| Esa | 7/10 | 2547 days | 3% |
| Vincent | 9/10 | 2547 days | 4% |
| TP&MM | 8/10 | 2547 days | 4% |
| Chantal | 10/10 | 2637 days | 4% |
| James & Kerry | 9/10 | 2667 days | 3% |
| Melinda Pyke | 8/10 | 2728 days | 3% |
| Grizzly Girl | 8/10 | 2728 days | 3% |
| Esteban | 8/10 | 2881 days | 3% |
| Bridget Cumming | 7/10 | 2919 days | 3% |
| M A Pelton | 10/10 | 2922 days | 3% |
| UK 50-something couple | 8/10 | 2940 days | 3% |
| Suzanne Wijsman | 9/10 | 2948 days | 3% |
| Sandra Jeffers | 6/10 | 3048 days | 2% |
| Howard Morris | 8/10 | 3064 days | 3% |
| Geoff Steele | 7/10 | 3092 days | 2% |
| Matthias Wohlgemuth | 7/10 | 3319 days | 2% |
| sara hoeflaken | 8/10 | 3333 days | 2% |
| Roeland Driessen | 8/10 | 3335 days | 2% |
| Cyrielle Vallat | 6/10 | 3391 days | 2% |
| Susan H | 10/10 | 3430 days | 2% |
| Ruth Hernandez | 8/10 | 3432 days | 2% |
| Kate | 8/10 | 3565 days | 2% |
| Joanna du Toit | 7/10 | 3722 days | 1% |
| Yvonne Wu | 8/10 | 3946 days | 1% |
| Soizic Vandermeersch | 7/10 | 3969 days | 1% |
| Rossco | 6/10 | 3976 days | 1% |
| Erica b | 7/10 | 3976 days | 1% |
| Larry Dashiell | 9/10 | 4007 days | 1% |
| June Harris | 6/10 | 4066 days | 1% |
| Matthias Thorn | 7/10 | 4066 days | 1% |
| Richard | 8/10 | 4251 days | 0% |
| travelscot | 9/10 | 4312 days | 0% |
| Patricia Revel | 9/10 | 4343 days | 0% |
| Katarina | 10/10 | 4344 days | 0% |
| Gillian Scott | 7/10 | 4371 days | 0% |
| Julie Robinson | 7/10 | 4388 days | 1% |
| Julien de la lande | 6/10 | 4414 days | 1% |
| Wouter Bosch | 7/10 | 4414 days | 1% |
| Aude Moulin | 5/10 | 4414 days | 1% |
| Maya Bakker-deDreu | 8/10 | 4422 days | 1% |
| JoMary Smith | 8/10 | 4432 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4463 days | 1% |
| Grantygrant | 7/10 | 4707 days | 1% |
| Bertiethebus | 8/10 | 4738 days | 1% |
| Kadyan | 6/10 | 4738 days | 1% |
| Malgorzata | 6/10 | 4742 days | 1% |
| Moni Sangoi | 7/10 | 4766 days | 1% |
| Puma17 | 7/10 | 4797 days | 1% |
| David | 5/10 | 4797 days | 1% |
| Auger | 10/10 | 4835 days | 1% |
| Auger | 10/10 | 4835 days | 1% |
| Mike & Jennie | 8/10 | 5114 days | 1% |
| Balonno | 3/10 | 5163 days | 1% |
| lydzb | 6/10 | 5194 days | 1% |
| ncopas | 1/10 | 5194 days | 0% |
| Annie Breton | 6/10 | 5452 days | 1% |
| Robin Smith | 10/10 | 5455 days | 1% |
| Jim & Rebecca | 9/10 | 5461 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5462 days | 1% |
| Chris | 8/10 | 5463 days | 1% |
| LandJ | 9/10 | 5469 days | 1% |
| Manfred & Gabi | 9/10 | 5480 days | 1% |
| Frank Lehe | 8/10 | 5482 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5485 days | 1% |
| Roy Seymour | 8/10 | 5488 days | 1% |
| Sabine | 9/10 | 5747 days | 1% |
| Anna | 9/10 | 5752 days | 1% |
| Siebels Wilke | 8/10 | 5766 days | 1% |
| Peter Aerborg | 9/10 | 5770 days | 1% |
| Peter Brown | 10/10 | 5830 days | 1% |
| John Cox | 8/10 | 5840 days | 1% |
| Helmet Paula | 3/10 | 5847 days | 0% |
| Lorena | 10/10 | 5862 days | 1% |
| Alexis De Wilde | 9/10 | 5934 days | 1% |
| Decuq | 7/10 | 5935 days | 1% |
| Vivien Williams | 10/10 | 6186 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
-1.06% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 53 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 51 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 48 | -1.00% |
| 49 | -1.02% |
| 50 | -1.04% |
| 51 | -1.06% |
| 52 | -1.08% |
| 53 | -1.10% |
| 54 | -1.12% |
| … | … |
Balancing Adjustment
3.13% 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
83%
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.