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FURTHER EMPIRICAL FINDINGS ON THE CAUSATIVE ROLE OF PORNOGRAPHY IN RAPE
The 25% to 30% of male students who admit that there is some likelihood that they would rape a woman if they could be assured of getting away with it, increases to 57% after exposure to sexually violent images, particularly sexually violent images depicting women enjoying rape (Donnerstein, 1983, p. 7). This means that as a result of one brief exposure to pornography, the number of males who are willing to consider rape as a plausible act for them to commit actually doubles.
On such brief exposure to pornography also increases male subjects' acceptance of rape myths and interpersonal violence against women. Given the hypothesis that such increased acceptance would serve to lower viewers' inhibitions against acting out violent desires, one would expect pornography consumption to be related to rape rates. This is what the following ingenious study found.
Larry Baron and Murray Straus (1984) undertook a 50-state correlational analysis of reported rape rates and the circulation rates of eight pornographic magazines: Chic, Club, Forum, Gallery, Genesis, Hustler, Oui, and Playboy. A highly significant correlation (+0.64) was found between reported rape rates and circulation rates. Baron and Straus attempted to ascertain what other factors might possibly explain this correlation. Their statistical analysis revealed that the proliferation of pornographic magazines and the level of urbanization explained more of the variance in rape rates than the other variables investigated (for example, social disorganization, economic inequality, unemployment, sexual inequality).
In another important study, Mary Koss conducted a large national survey of over 6,000 college students selected by a probability sample of institutions of higher education (Koss, Gidycz, and Wisniewski, 1987). She found that college males who reported behavior that meets common legal definitions of rape were significantly more likely than college males who denied such behavior to be frequent readers of at least one of the following magazines: Playboy, Penthouse, Chic, Club, Forum, Gallery, Genesis, Oui and Hustler (Koss and Dinero, 1989).
Several other studies have assessed the correlation between the degree of males' exposure to pornography and attitudes supportive of violence against women. Malamuth reports that in three out of four studies, "higher levels of reported exposure to sexually explicit media correlated with higher levels of attitudes supportive of violence against women" (1986, p. 8).
(1) Malamuth and Check (1985) conducted a study in which they found a positive correlation between the amount of sexually explicit magazines a sample of college males read and their beliefs that women enjoy forced sex.
(2) Similarly, Check (1985) found that the more often a diverse sample of Canadian males were exposed to pornography, the higher their acceptance of rape myths, violence against women, and general sexual callousness was.
(3) Briere, Corne, Runtz and Malamuth (1984) found similar correlations in another sample of college males.
In her study of male sexuality, Shere Hite found that 67% of the males who admitted that they had wanted to rape a woman reported reading pornographic magazines, compared to only 19% of those who said that they had never wanted to rape a woman (1981, p. 1123). With regard to the frequency of exposure to pornography, Hite reported that only 11% of the 7,000 males she surveyed said that they had never looked at pornography; 36% said they viewed it regularly, 21% said they did so sometimes, 26% said they did so infrequently, and 6% said that they had looked at it in the past (1981, p. 1123). While correlation does not prove causation, and it therefore cannot be concluded from these studies that it was the consumption of the pornography that was responsible for the males' higher acceptance of violence against women, their findings are consistent with a theory that a causal connection exists.
If the rape rate was very low in the United States, or if it had declined over the past few decades, such findings would probably be cited to support the view that pornography does not play a causative role in rape. While drawing such a conclusion would not be warranted, it is nevertheless of interest to note that my probability sample survey in San Francisco shows that a dramatic increase in the rape rate has occurred in the United States over the last several decades, during which there has also been a great proliferation of pornography (Russell, 1984). Unlike the rapes studied by Straus and Baron, 90% of the rapes and attempted rapes described in my survey were never reported to the police.
With regard to experimental work, Donnerstein points out that, "one cannot, for obvious reasons, experimentally examine the relationship between pornography and actual sexual aggression" (1984, p. 53). He has, however, conducted experiments that show that the level of aggression of male subjects toward females increases after they have been exposed to violent pornography in which a female rape victim was portrayed as becoming aroused by the end of the movie. (Aggression was measured by the intensity of electric shock subjects were willing to administer, Donnestein, 1984). Violent films that were non-pornographic (depicting, for example, a man hitting a woman) also increased male subjects' levels of aggression toward women, but not to the same extent as violent pornographic films. When Donnerstein used violent pornography in which the victim was portrayed as being distressed by the sexual assault throughout the movie, the levels of aggression of male subjects toward females became increased only when they had first been angered by a confederate of the experimenter before seeing the movie.
To explain why male subjects' aggression toward women increases the most after seeing pornography that depicts a female rape victim becoming sexually aroused by the assault, Malamuth suggested that: "positive victim reactions...may act to justify aggression and to reduce general inhibitions against aggression" (1984, p. 36). This interpretation is consistent with my causal model's emphasis on the important role pornographic depictions play in undermining males' inhibitions against acting out hostile behavior toward women.
Many psychologists reject the use of attitudes as a basis for predicting behavior. Similarly, some people question whether Malamuth's measure of males' self-reported likelihood to rape has any meaningful relationship with their rape behavior. Hence, Malamuth's experiment to test whether males' attitudes and sexual arousal to depictions of rape can predict non-sexual aggression in the laboratory is of particular interest. A week after, measuring male subjects' attitudes and sexual arousal to rape, they were angered by a female confederate of the experimenter. When the subjects were given an opportunity to behave aggressively toward her by administering an unpleasant noise as punishment for errors she made in an alleged extrasensory perception experiment, males who had higher levels of sexual arousal to rape and who had attitudes that condoned aggression "were more aggressive against the woman and wanted to hurt her to a greater extent" (Malamuth, 1986, p. 16). On the basis of this experiment, as well as two others, Malamuth concluded that "attitudes condoning aggression against women related to objectively observable behavior--laboratory aggression against women" (1986, p. 16).
Both Donnerstein and Malamuth emphasize that their findings on the relationship between pornography and aggression toward women relate to aggressive or violent, not to non-violent, pornography. Donnerstein, for example, maintains that "nonaggressive materials only affect aggression when inhibitions to aggress are quite low, or with long-term and massive exposure. With a single exposure and normal aggressing conditions, there is little evidence that nonviolent pornography has any negative effects" (1984, pp. 78-79). In the real world, however, inhibitions on aggressive behavior are often very low, and long-term and massive exposure to non-violent material is also quite common. Furthermore, there is a lot of evidence of harm from non-aggressive pornography, aside from its impact on aggressive behavior (for example, see my earlier discussion of some of Zillmann's findings).
Finally, given how saturated United States culture is with pornographic images and how much exposure many of the male subjects being tested have already had; the task of trying to design experiments that can show effects on the basis of one more exposure is challenging indeed. When no measurable effects result, it would be wrong, because of this methodological problem, to interpret the experiments as proving that there are no effects in general. We should focus, therefore, on the effects that do show up, rather than being overly impressed by the effects that do not.
Some people are critical of the fact that most of the experimental research on pornography has been conducted on college students who are not representative of males in the general population. Hence, the research of Richard Frost and John Stauffer (1987) comparing the responses to filmed violence of college students and residents of an inner-city housing project is of particular interest.
In five of the ten violent films shown to these two groups the violence was directed at females. Frost and Stauffer evaluated these males' sexual arousal to these films by applying both self-report and physiological measures. They found that "there was no single form of violence for which the responses of the college sample exceeded those of the inner city sample on either measure" (1987, p. 36). Four of the five most physiologically arousing categories of violence were the same for both groups; a female killing another female; a male killing a female; rape/murder; and a female killing a male (1987, p. 37). Interestingly, depictions of male/female assault were the least exciting of all ten types of violence measured to all subjects (1987, p. 39).
The greatest disparity between the two groups in both physiological and self-reported sexual arousal was to depictions of rape, which "caused the highest response by inner-city subjects but only the fifth highest by the college sample" (1987, p. 38). Although it is not acceptable to infer action from arousal, nevertheless males who are aroused by depictions of violence toward women are more likely to act violently toward them than males who are not aroused by such depictions.
Hence, Frost and Stauffer's study suggests that college students are less prone to sexual violence than some other groups of males. This will come as no surprise to many people, as inner-city environment are more violent than colleges or than the places in which most college students grew up. One reason this finding is significant is that most of the research in this area has been conducted on college males. It is important to realize that the highest percentages of male college students who admit that they might rape women, for example, might well be even higher if samples were drawn from non-student populations.
The exposure of sex offenders to pornography is another area of research that is relevant to the causal connections between pornography and rape. It is well known that many sex offenders claim that viewing pornography affects their criminal behavior. Ted Bundy is perhaps the most notorious of these males. For example, in one study of 89 non-incarcerated sex offenders conducted by William Marshall, "slightly more than one-third of the child molesters and rapists reported at least occasionally being incited to commit an offense by exposure to forced or consenting pornography" (Einsiedel, 1986, p. 62). Exactly a third of the rapists who reported being incited by pornography to commit an offense said that they deliberately used pornography in their preparation for committing the rape. The comparable figure for child molesters was much higher--53% versus 33% (Einsiedel, 1986, p. 62).
However, as these sex offenders appear to have used the pornography to arouse themselves after they had already decided to commit an offense, it could be argued that it was not the pornography that incited them. To what extent they actually required the pornography in order to commit their offenses, like some perpetrators require alcohol, we do not know. Even if these perpetrators were eliminated from the data analysis, however, that still leaves 66% of the rapists and 47% of the child molesters who claimed that they were at least sometimes incited by pornography to commit an offense.
Gene Abel, Mary Mittleman, and Judith Becker (1985) evaluated the use of pornography by 256 perpetrators of sexual offenses, all of whom were undergoing assessment and treatment. Like Marshall's sample, these males were outpatients, not incarcerated offenders. This is important because there is evidence that the data provided by incarcerated and non-incarcerated offenders differ (Einsiedel, 1986, p. 47). Abel and his colleagues reported that 56% of the rapists and 42% of the child molesters implicated pornography in the commission of their offenses. Edna Einsiedel, in her review of the social science research for the 1985 Attorney General's Commission of Pornography, concluded that these studies "are suggestive of the implication of pornography in the commission of sex crimes among some rapists and child molesters" (p. 63, emphasis in original).
In another study, Michael Goldstein and Harold Kant found that incarcerated rapists had been exposed to hard-core pornography at an earlier age than males presumed to be non-rapists. Specifically, 30% of the rapists in their sexual offender sample said that they had encountered hard-core pornographic photos in their preadolescence (i.e., before the age of 11; 1973, p. 55). This 30% figure compares with only 2% of the control group subjects exposed to hard-core pornography as preadolescents. (The control group was obtained by a random household sample that was matched with the offender group for age, race, religion, and educational level; 1973, p. 50). Could it be that this early exposure of the offenders to hard-core pornography played a role in making them rapists? Hopefully, future research will address this question.
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