Both the so-called "Duluth Model" of feminist Ellen Pence and the "1 in 4" claim of feminist Mary Koss have been injected in the public discourse to spread such falsehoods as "men are the only rapists and women are the only victims". This was done to extort outrageous public policies and budgets for feminist political campaigns while placing men under "collective guilt" and "collective punishment" procedures that intentionally prevent the recognition of men and boys as rape, sexual assault and domestic violence (DV) victims.

Many studies and analyses have already pointed out the mendacity of feminists over the years such as these two:

https://recalculatingthegenderwar.tumblr.com/post/162336650896/new-cdc-data-again-finds-as-many-if-not-more

https://www.reddit.com/r/MensRights/comments/dar25h/mary_koss_the_cdc_and_when_a_rape_victim_is_not_a/

A particularly important study is "The Sexual Victimization of Men in America: New Data Challenge Old Assumptions" form 2015:

https://www.researchgate.net/publication/262306031_The_Sexual_Victimization_of_Men_in_America_New_Data_Challenge_Old_Assumptions

This study precisely represents the truth about rape and sexual attack (black = male victims, white = female victims):

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Percentages of male and female victims of rape and sexual assault in the general and in prison populations

All data here are percentages. If you look at the leftmost two columns, they show the rates of rape by penetration for women, as well as "made to penetrate" for men as percentages, in the general population, without prison ("institutionalized") rapes. There can be no doubt that "made to penetrate" is rape as long as we consider it rape when a person is forced to have sex with someone they don't want to. White columns represent female victims, black columns are male victims. They are the same (1.1%) for both genders. The absolute numbers of the CDC's National Intimate Partner and Sexual Violence Survey (NISVS) for 2010-2012 bear this out:

CDC NISVS comparison of rape by penetration of women and rape by forced penetration of men. The 2012 figure is significantly higher for men

Note how the numbers are essentially the same, except for 2012 when there were significantly more rapes of men than of women (over 700,000 more). Note also that the CDC is dishonest when it says "statistically insignificant" when it reports the rape of men by penetration because men do get raped by penetration in probably "significant" numbers. Those numbers may not be known, but then they could have indicated as such ("unknown" as opposed to "not significant").

The more important fact is that all the above are "general population (non-institutionalized)" numbers that do NOT include prison rapes nor juvenile retention facility (penetrative) rapes. Those are revealed in the "Adult Inmates" and "Juveniles" columns (rightmost six columns) in the chart above. The first two show how much more women inmates rape other women inmates than male inmates rape other male inmates. The second two show that more men than women are raped by guards. The rightmost two columns are the most shocking and reflect juvenile retention facilities. These show, again, that female juvenile inmates rape other females inmates far more than males do to other males, and that - the last one is the most shocking column - overwhelmingly more boys than girls are raped by guards in juvenile facilities. Most of these perpetrators among guards are female guards as it is clear in the text. Keep in mind also that the real big absolute numbers are behind the black (male victim) columns since 95% of prison populations are male. For the comparison of "tendencies", such as the tendency to rape or sexually assault, percentages are the perfect way to go as in the chart above. Once you add the jail / prison / juvenile facility rapes to the general population numbers (which far exceed 200,000 per year in the US), you will find that significantly more men than women are raped a year in the US. It is also important to note that when we talk about "tendencies", prisons are an excellent testing ground as they bring together large numbers of people in close proximity, many of whom are obviously not very squeamish about rape, assault and using violence.

The unavoidable conclusions from this chart and the data behind it completely destroy the "narrative" and the "Duluth Model". Contrary to feminist "narratives", it appears that not only are more men raped than women, but also that women are more prone to rape than men: more women rape their fellow women inmates in prison than men, female guards rape overwhelmingly more boys than male guards rape anybody. Also add the large numbers of female teachers who rape underage boys (/r/teacherswhorape/) and the fact that more than 40% of DV victims are men but this number if so massively underreported that it is likely far more than that. Add also the fact that lesbian couples are the most violent, followed by straight couples, followed by gay male couples who are the least violent. This is per the couples' violence data from NICVS 2010 https://www.cdc.gov/violenceprevention/pdf/nisvs_sofindings.pdf (page 2):

The lifetime prevalence of rape, physical violence, and/or stalking by an intimate partner:

For women: - Lesbian – 43.8% - Heterosexual – 35.0%

For men: - Gay – 26.0% - Heterosexual – 29.0%

I skipped the "bisexual" column as the study says the numbers are so small that they are unreliable. Lesbian is highest, gay is lowest.

All data seem to indicate that more men are raped than women, women rape more than men and, implicitly, that women seem overall "hornier" than men (see this subreddit for the many cases of sexual harassment of men by women at work and the harassment and rape of boys by female teachers). Keep in mind that when something is unexpected it is nonetheless often true. That's what we call a "discovery". Discoveries are often denied first but the truth always comes out eventually.

Further reading:

https://slate.com/human-interest/2014/04/male-rape-in-america-a-new-study-reveals-that-men-are-sexually-assaulted-almost-as-often-as-women.html

https://www.theatlantic.com/science/archive/2016/11/the-understudied-female-sexual-predator/503492/

https://www.scientificamerican.com/article/sexual-victimization-by-women-is-more-common-than-previously-known/

https://www.dailymail.co.uk/news/article-2449454/More-men-raped-US-women-including-prison-sexual-abuse.html

PS: Note that "collective guilt" and "collective punishment" are historical terms that identify policies and procedures carried out by the Nazis in Poland during WWII.