G'day, 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 Ace Rental Cars.
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.
Ace Rental Cars
Valid Reviews
110 Valid Reviews
The Ace Rental Cars experience has a total of 117 reviews. There are 110 valid reviews that are included when calculating the ranking score and 7 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 110 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 12 |
|
11% |
| 9/10 | 9 |
|
8% |
| 8/10 | 21 |
|
19% |
| 7/10 | 7 |
|
6% |
| 6/10 | 3 |
|
3% |
| 5/10 | 5 |
|
5% |
| 4/10 | 3 |
|
3% |
| 3/10 | 2 |
|
2% |
| 2/10 | 17 |
|
15% |
| 1/10 | 31 |
|
28% |
49.45% Average
The raw data average (mean) for all the Ace Rental Cars valid reviews is 49.45% and is based on 110 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
47 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 110 valid reviews, the experience has 47 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 47 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 5 |
|
11% |
| 9/10 | 5 |
|
11% |
| 8/10 | 19 |
|
40% |
| 7/10 | 7 |
|
15% |
| 6/10 | 3 |
|
6% |
| 5/10 | 4 |
|
9% |
| 4/10 | 2 |
|
4% |
| 3/10 | 1 |
|
2% |
| 2/10 | 1 |
|
2% |
| 1/10 | 0 |
|
0% |
73.83% Average
The raw data average (mean) for all the Ace Rental Cars face-to-face reviews is 73.83% and is based on 47 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
35.43%
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 |
|---|---|---|---|
| Nicole | 1/10 | 310 days | 100% |
| Lana | 1/10 | 921 days | 55% |
| Megan | 1/10 | 1041 days | 42% |
| Mateo | 1/10 | 1194 days | 29% |
| Jenny Kirk | 1/10 | 1955 days | 5% |
| John | 1/10 | 2108 days | 5% |
| Kim canny | 1/10 | 2168 days | 5% |
| Richard Bird | 2/10 | 2168 days | 5% |
| Neal Smith | 10/10 | 2199 days | 11% |
| Marianne | 1/10 | 2474 days | 4% |
| Andy Willmott | 1/10 | 2502 days | 4% |
| Kate | 1/10 | 2502 days | 4% |
| Luca Mangione | 2/10 | 2533 days | 4% |
| John | 2/10 | 2533 days | 4% |
| Sri Claney | 1/10 | 2564 days | 4% |
| Tom | 10/10 | 2564 days | 9% |
| Wendy | 10/10 | 2625 days | 9% |
| Justin | 1/10 | 2655 days | 4% |
| Dan | 2/10 | 2655 days | 4% |
| PB | 1/10 | 2747 days | 3% |
| Mike | 2/10 | 2808 days | 4% |
| Siena | 1/10 | 2808 days | 3% |
| Josephina | 1/10 | 2808 days | 3% |
| RyLee B | 1/10 | 2898 days | 3% |
| Chris Monk | 1/10 | 3173 days | 2% |
| Bryce Kehoe | 8/10 | 3190 days | 6% |
| Martin Murlik | 6/10 | 3194 days | 5% |
| Audrey Darling | 1/10 | 3232 days | 2% |
| Ben | 8/10 | 3334 days | 5% |
| Jo Yo | 1/10 | 3385 days | 2% |
| Olivier Reculeau | 8/10 | 3540 days | 4% |
| Bernhard Fichtl | 5/10 | 3597 days | 3% |
| Casey O'Brien | 2/10 | 3598 days | 2% |
| Carmel Lackey | 10/10 | 3721 days | 3% |
| Martin B | 2/10 | 3782 days | 1% |
| S D | 2/10 | 3843 days | 1% |
| Dror Eyal | 2/10 | 3935 days | 1% |
| Ted Allan | 2/10 | 3935 days | 1% |
| Kat R | 2/10 | 3963 days | 1% |
| Tom Grigg | 6/10 | 3975 days | 2% |
| Charlie Birdwick | 9/10 | 4086 days | 1% |
| Kiwinomad | 1/10 | 4116 days | 1% |
| Paje | 2/10 | 4116 days | 1% |
| MODADC | 3/10 | 4147 days | 1% |
| kjd | 2/10 | 4269 days | 0% |
| Pete Dixon | 1/10 | 4328 days | 0% |
| Diane S | 9/10 | 4328 days | 0% |
| Michael Rohn | 8/10 | 4356 days | 0% |
| Cornelia Stark | 9/10 | 4356 days | 0% |
| Michael Stark | 10/10 | 4356 days | 0% |
| Tisa Duong | 1/10 | 4359 days | 0% |
| R K | 1/10 | 4359 days | 0% |
| Simon Kay | 2/10 | 4359 days | 0% |
| Annika Schmidt | 7/10 | 4639 days | 2% |
| Patrick Stoeit | 5/10 | 4639 days | 2% |
| Y S | 10/10 | 4693 days | 3% |
| Rikke E. | 1/10 | 4724 days | 1% |
| Takenforaride | 1/10 | 4724 days | 1% |
| sharnef | 2/10 | 4816 days | 1% |
| Tourist101 | 9/10 | 4816 days | 3% |
| Jonas King | 4/10 | 4877 days | 2% |
| NoWonderAllKiwisAreInOZ | 1/10 | 4938 days | 1% |
| russwhanau | 1/10 | 4999 days | 1% |
| Marian Stolker | 8/10 | 5046 days | 3% |
| Thomas Krause | 5/10 | 5053 days | 2% |
| Chris & Jen Spencer | 8/10 | 5070 days | 3% |
| Wendy Ashmore | 10/10 | 5137 days | 3% |
| Hamlet | 1/10 | 5243 days | 1% |
| tonny_lim | 1/10 | 5304 days | 1% |
| Gunter | 8/10 | 5379 days | 3% |
| Igor Cima | 10/10 | 5382 days | 3% |
| Gary Koehler | 8/10 | 5387 days | 3% |
| Ryan Dorsey | 8/10 | 5393 days | 3% |
| Kathleen Brown | 10/10 | 5394 days | 3% |
| Ross | 10/10 | 5396 days | 3% |
| Wendy Good | 8/10 | 5398 days | 3% |
| Stacey Rees | 2/10 | 5410 days | 1% |
| Helen Gilbertson | 8/10 | 5423 days | 3% |
| Lacam | 5/10 | 5424 days | 2% |
| jls | 1/10 | 5486 days | 1% |
| chubby69 | 9/10 | 5639 days | 3% |
| Ann Michle | 8/10 | 5681 days | 3% |
| Rose Kearsley | 7/10 | 5751 days | 2% |
| Jamie Hallifax | 8/10 | 5780 days | 3% |
| meggles | 2/10 | 5789 days | 1% |
| Jane | 8/10 | 5851 days | 3% |
| Dimitry Zonnet | 8/10 | 5877 days | 3% |
| S Schlesinger | 10/10 | 6099 days | 3% |
| Jessica Jobmann | 7/10 | 6102 days | 2% |
| Mayer | 8/10 | 6111 days | 3% |
| AnnickH | 7/10 | 6117 days | 2% |
| OllyD | 4/10 | 6124 days | 2% |
| Jasmin | 7/10 | 6126 days | 2% |
| ChenM | 9/10 | 6129 days | 3% |
| Mark | 8/10 | 6167 days | 3% |
| Daryl | 7/10 | 6168 days | 2% |
| Tim | 8/10 | 6215 days | 3% |
| Kath | 9/10 | 6273 days | 3% |
| Louise | 9/10 | 6302 days | 3% |
| Edmund Hillstone | 1/10 | 6445 days | 1% |
| Marian Mckinney | 10/10 | 6488 days | 3% |
| Emma Dickinson | 6/10 | 6492 days | 2% |
| Omri Hasson | 4/10 | 6492 days | 2% |
| Ian and Judy | 8/10 | 6496 days | 3% |
| Katharina | 7/10 | 6507 days | 2% |
| Mike | 3/10 | 6507 days | 1% |
| Mark | 8/10 | 6523 days | 3% |
| Melissa Steedman | 5/10 | 6534 days | 2% |
| Steven | 9/10 | 6569 days | 3% |
| purplekat99 | 8/10 | 6643 days | 3% |
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 Ace Rental Cars experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-7.07% Adjustment
Recent reviews reflect the experience as it currently operates. This means it's important to get fresh reviews. Some experiences discovered they could get a few good reviews and then, resting on their laurels, discourage any further reviews. This adjustment stimulates experiences to be positively involved in the review generating process and discourages them from manipulating the ranking system in this manner.
What constitutes a recent review is based on the how old it is, what type of experience it is applied to and and what time of year it currently is. Due to the seasonal nature of many businesses, what is considered recent is dynamically adjusted throughout the year.
There may be an adjustment if this experience hasn't received enough reviews within the last 42 days. The Ace Rental Cars experience has 0 recent rankings. Adjustments are according to the following table:
| Recent Reviews | Adjustment |
|---|---|
| 0 | -3.00% |
| 1 | -2.63% |
| 2 | -1.50% |
| 3 | -0.38% |
| 4 | -0.00% |
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 Ace Rental Cars experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
33.34% 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
62%
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.