Ranking Score Explained

Hi there, 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 Bargain 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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Bargain Rental Cars

Valid Reviews

64 Valid Reviews

The Bargain Rental Cars experience has a total of 73 reviews. There are 64 valid reviews that are included when calculating the ranking score and 9 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.

Within these 64 valid reviews, the experience has 3 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 64 valid reviews:

Rating Count Percentage
10/10 34
53%
9/10 12
19%
8/10 4
6%
7/10 0
0%
6/10 1
2%
5/10 1
2%
4/10 0
0%
3/10 0
0%
2/10 1
2%
1/10 11
17%

78.75% Average

The raw data average (mean) for all the Bargain Rental Cars valid reviews is 78.75% and is based on 64 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Weighted Average

85.79%

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
Febarosa 10/10 32 days 100%
W Donovan 9/10 94 days 99%
Yukio 1/10 94 days 72%
Chris 10/10 124 days 98%
Sandy Hodge 10/10 124 days 98%
Jeanette 10/10 155 days 96%
glenda 8/10 155 days 91%
Geoff Willmott 10/10 155 days 96%
Krunal 10/10 155 days 96%
Jennifer 10/10 155 days 96%
Tamara 10/10 155 days 96%
Shea Malloy 9/10 185 days 95%
Doreen 10/10 216 days 93%
chaoli jones 10/10 247 days 90%
David 10/10 247 days 90%
Lindsay Collins 9/10 247 days 90%
Ema 10/10 247 days 90%
Sophie R. 10/10 247 days 90%
Katherine 10/10 247 days 90%
Constance Sun 1/10 397 days 54%
Stevie Reid 10/10 398 days 75%
Fred 9/10 398 days 75%
Cam 1/10 398 days 54%
Mabyn Carmichael 8/10 429 days 67%
Ali Millar 2/10 460 days 50%
Pete UK 9/10 735 days 25%
Ms Harris 1/10 735 days 18%
Tyler 1/10 763 days 16%
Kate 1/10 825 days 11%
Terry Smith 1/10 916 days 7%
Qassim Kaisi 10/10 1039 days 5%
VAINE TUKURANGI TOKI 10/10 1039 days 5%
S.Singh 10/10 1069 days 4%
Simba 9/10 1069 days 4%
Jim 9/10 1069 days 4%
Kathy 10/10 1069 days 4%
StevieB 10/10 1100 days 4%
Kirstie & Aaron 10/10 1100 days 4%
Pieri 10/10 1100 days 4%
Nick 10/10 1100 days 4%
Rhiannon 9/10 1100 days 4%
kinjalkumar 10/10 1128 days 4%
Dave Watson 10/10 1128 days 4%
Kishore Lal 10/10 1219 days 4%
Kevin West 10/10 1250 days 4%
Jacky McLaren 9/10 1280 days 4%
Jason Smith 10/10 1280 days 4%
Tine 10/10 1372 days 4%
Chris Skeen 10/10 1403 days 4%
Kathryn Algar 9/10 1464 days 4%
Dean Godfrey 10/10 1464 days 4%
Ehds Reyes 9/10 1492 days 3%
Martin White 9/10 1523 days 3%
Niyaz Noor 1/10 1523 days 2%
Alison Stewart 6/10 1523 days 3%
Graeme Worsley 10/10 1523 days 3%
Jun c 10/10 1554 days 3%
Franceska Banga 1/10 1798 days 2%
mathew sullivan 1/10 2285 days 1%
Sue Cockrell 10/10 2620 days 1%
Sachin 1/10 2926 days 0%
Danlin Yang 8/10 4379 days 0%
Doll 5/10 4427 days 0%
Anne Mainwaring 8/10 4775 days 0%

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 Bargain Rental Cars experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.18% 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 56 days. The Bargain Rental Cars experience has 1 recent ranking. Adjustments are according to the following table:

Recent Reviews Adjustment
0 -3.00%
1 -2.83%
2 -2.33%
3 -1.50%
4 -0.67%
5 -0.17%
6 -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 Bargain Rental Cars experience has been adjusted for 17 days. Adjustments are according to the following table.

Days Adjustment
14 -0.29%
15 -0.31%
16 -0.33%
17 -0.35%
18 -0.37%
19 -0.39%
20 -0.41%

Final Ranking Score

83%

The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.