Abstract
Keywords
Introduction
The main claim of perceptual deterrence theory is that individual sanction threat perceptions (i.e., perceptions of the certainty, severity and celerity of punishment) deter potential offenders from committing crime (see Paternoster, 2018). Confronted with overall rather meager support for this claim (see Kleck and Sever, 2017; Pratt et al., 2006), perceptual deterrence research has focused more and more on the concept of
Much differential deterrability research has also concentrated on personal morals or morality (views of what behavior is right or wrong, or good or bad) 2 as a moderator of deterrence effects. The interest in morality may have originated from Parson’s (1937/1968) early interpretation of Émile Durkheim's work that personal morals may make deterrence considerations irrelevant in some circumstances, operating as a sort of filtering mechanism. Some form of moral filtering thesis was then introduced into criminology by various scholars (e.g., Grasmick and Green, 1981; Paternoster and Simpson, 1996; Toby, 1964; Wikström et al., 2012; Wright et al., 2004). Generally, these scholars assume that strong personal morals decrease the likelihood that an individual sees crime as an alternative in the first place. If people, however, do not see crime as a viable alternative, they have no need to weigh the pros and cons of committing such behavior, making deterrence considerations irrelevant. Individuals with weaker morals, in contrast, should see crime much more often as a potent action alternative and within their deliberations on such behavior deterrence processes should thus play a more prominent role. In line with this reasoning, a number of empirical studies have found that sanction threat perceptions deter crime only or especially among individuals with weak morals. Those with stronger morals, in contrast, generally commit fewer crimes and are typically affected less or not at all by their perceptions of sanction threat (e.g., Bachman et al., 1992; Hirtenlehner and Reinecke, 2018; Kroneberg et al., 2010; Paternoster and Simpson, 1996; Svensson, 2015).
However, even if sanction threat perceptions affect individuals with weaker morals, this does not provide sufficient evidence to conclude that these individuals can be deterred from further crimes through criminal justice interventions. This is because perceptual deterrence theory encompasses two processes or linkages (Paternoster, 2018; Pogarsky et al., 2004; see Figure 1), both of which are required to deter criminal behavior. Justice intervention can prevent crime only if it, first, alters the perceptions of sanction threat (

Differential deterrability by personal morals in perceptual deterrence theory.
The perceptual linkage is, relative to the behavioral linkage, less studied in the differential deterrability literature (Loughran et al., 2018). The studies that investigated whether individuals vary in how they update their risk perceptions after being arrested or detected by the police concentrated mainly on individuals’ self-control abilities and criminal history as potential moderators of the updating process (e.g., Pogarsky et al., 2004, 2005; Schulz, 2014; Thomas et al., 2013). Personal morality as a moderating force, in contrast, has rarely been the subject of perceptual updating research. To date, only Pogarsky et al. (2005) have studied whether updating differs between individuals who vary in their morals, producing mixed evidence of such differential learning. It thus remains questionable whether those with weak personal morals are especially deterrable from crime through justice intervention, even if the available evidence on the behavioral linkage is promising in this regard.
To help answering this question, the current study explores whether individuals with different morals update their risk perceptions differently after being detected by the police. For this purpose, the article first provides a brief theoretical background on how people update their risk perceptions in general according to the Bayesian updating model. It then derives two hypotheses on how people may update their risk perceptions differently depending on their morals. The article finally evaluates the validity of the hypotheses empirically using panel data from German adolescents.
Risk perception updating in the Bayesian updating model
In line with a number of criminological studies we will discuss the perceptual updating process against the background of the Bayesian updating model (e.g., Anwar and Loughran, 2011; Lochner, 2007; Matsueda et al., 2006). In its simplest form, this model assumes that individuals form their risk perceptions based on two kinds of information (see Anwar and Loughran, 2011). First, they bring with themselves a baseline (or initial) risk perception that is informed in some part by prior life experiences. Second, they accumulate new information on the risk of detection that they then process to update this prior risk perception. According to the Bayesian updating model, crucial information for the updating is the ratio of the number of personal detections to crimes. This ratio provides a
Personal morals and differential updating of risk perceptions
From the criminological literature, we derive two opposing predictions on how personal morals may moderate the updating process: first, that those with weak morals update more strongly after detection experiences and, second, that those with strong morals update more strongly after detection experiences. 4 These opposing predictions can each be derived from various perspectives, which offer different explanations for the respective differential learning. The current study tests the two predictions as our main hypotheses, yet it cannot empirically entangle which explanation is valid.
Individuals with weaker morals update more strongly
The first prediction is that individuals with weak moral opposition to delinquency (i.e., weak personal morals) will update their risk perception more strongly after detection experiences. This prediction can be derived primarily from three perspectives.
5
According to the
From a
The
Despite their different explanations, all three aforementioned perspectives (the
Individuals with stronger morals update more strongly
The second prediction is that individuals with strong moral opposition to delinquency (i.e., strong personal morals) will update their risk perception more strongly after detection experiences. This prediction can also be derived from the spuriousness and the Bayesian updating perspectives, which again assume that the level of self-control abilities or criminal activity can explain (at least part of) the differential updating process. This time, however, the theoretical arguments indicate that self-control abilities and (here:
According to the
According to the
Both the
The empirical evidence
Empirical research on the two hypotheses is scarce. As reported above, so far only Pogarsky et al. (2005) have conducted an empirical investigation of whether personal morality moderates the updating process. For this purpose, they analyzed differential changes in perceptions of the risk of arrest for theft or assault in a nationally representative sample of juveniles in the United States. In line with hypothesis H1, their results indicate that an increase in the number of arrests was more strongly associated with an increase in risk perceptions among those with weak moral opposition to delinquency than among those with strong morals. However, their moderation estimates were relatively uncertain and, as a result, statistically insignificant. This estimation uncertainty can be attributed to their relatively small database (approx. 1725 observations). The current study strives to overcome this statistical power issue by using a larger data pool (see methods section). Since these data were collected from German adolescents, our study also examines whether the results of Pogarsky and colleagues translate to another national context.
Methods
Data
The data for our analysis stems from the panel study
For our analysis, we used only data from panel waves 2 to 5 (i.e., during the respondents’ adolescent years) and included only observations from participants that met two conditions. First, the juveniles had to have participated in at least two of the four-panel waves. Second, all data had to be complete for each observation to be included in the analysis. Furthermore, the analysis sample includes only observations in which individuals had reported at least one criminal offense. This offender-only stratification has been used more often recently to study the perceptual effects of arrests or detections (e.g., Anwar and Loughran, 2011; Schulz, 2014). Due to these selection criteria, our final analysis sample consists of 2231 observations from 1385 adolescents. If not otherwise mentioned, we included the relevant measures as time-variant concepts in our analyses (for more information on the measures and descriptive statistics, see online supplemental material, Table S1).
Measures
Perceptions of detection risk
Our dependent variable measures individual perceptions (assessments) of the risk of detection when committing crimes.
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More specifically, the juveniles were asked how likely they thought it would be for them to get caught if they committed the following types of delinquency: assault, bicycle theft, burglary, extortion, provocation or intimidation, shoplifting, car theft, and vandalism. The response categories were (0) very unlikely, (1) unlikely, (2) neither/nor, (3) likely, and (4) very likely. To generate a score of the
Self-reported criminal offending
Juveniles were asked whether and how frequently they had been involved in various delinquent behaviors during the last year. We used frequency reports on the commission of assault, shoplifting, graffitiing, scratching, and (other forms of) vandalism to generate a criminal offending variable. 14 To calculate such a variable, we first summed up the reported frequencies of the different criminal offenses. As the sum score is highly skewed to the right, we categorized it to diminish the effects of outliers (for a similar approach, see Matsueda et al., 2006; Schulz, 2014). The resulting ordinal variable has the following categories: (0) 1–2 offenses, (1) 3–9 offenses, and (2) 10 or more offenses. 15
Detection-crime ratio
In line with previous research and the Bayesian updating model, we included detection information as our key independent variable by calculating a detection-crime ratio (e.g., Anwar and Loughran, 2011; Matsueda et al., 2006; Schulz, 2014; Thomas et al., 2013). A detection-crime ratio is argued to be more closely related to the perceived detection risk than the pure number of times a juvenile was detected for committing a crime (Horney and Marshall, 1992). In addition to the self-reported offending information on the five crimes mentioned above, we therefore also relied on reports on the number of crimes the police were aware of. We summed up the crime (Cf) and detection (Df) frequencies and finally generated a
Personal morals
Our personal morals scale is based on the juveniles’ reports on whether they approved or disapproved of eight different delinquent behaviors (assault, bicycle theft, burglary, car theft, extortion, provocation/intimidation, shoplifting, vandalism). The participants could respond that they thought committing the offense in question was (−2) completely harmless, (−1) relatively harmless, (0) neither/nor, (1) relatively bad, or (2) very bad. We then generated a general personal morals score (range: −2 to 2) by taking the mean across the different criminal behaviors
Other covariates
Our selection of other covariates was based on Stafford and Warr’s (1993) reconceptualized deterrence theory, in which they suggest that risk perceptions are learned not only through personal but also through vicarious experiences. In particular, we included the following variables that provide information on the latter type of experiences: First, we considered data on juveniles’
Analytical procedure
To study the updating processes outlined in our hypotheses, we relied on a series of fixed effects regression models (Allison, 2009). These models allow the updating process to be modeled in an intraindividual way by focusing on how individual risk perceptions change over time on average. Since learning or updating processes operate within individuals over time, capitalizing on intraindividual variation seems more appropriate than resorting to perceptual variation between individuals. Furthermore, beyond being an intuitive choice for studying learning processes, fixed effects models have the advantage of automatically accounting for all of the respondents’ (unobserved) heterogeneity due to time-invariant factors by estimating pure within-effects (Wooldridge, 2010).
We specified our fixed effects regression models in such a way that differences from the within-person mean of general risk perceptions
The third and final models (Model 3) allow for an assessment of our hypotheses by including an interaction term between the personal morals score and the detection-crime ratio. Although we treat the information on personal morals as a time-invariant factor, which is automatically eliminated in fixed effects models, unit-level differences can nonetheless be considered in these models via interaction terms. It is thus possible to examine the extent to which individuals with weaker morals adjust their risk perception differently than individuals with stronger morals after experiences of detection (see Schulz, 2014 for a similar approach but with self-control indicators as moderators).
Results
This section presents the results of our fixed effects models (see Table 1). 18 As outlined above, Model 1 predicts the intraindividual changes in risk perceptions using only the detection-crime ratio as a predictor. The estimate of the ratio variable indicates that the higher the individual's experienced certainty (or rate) of detection, the higher their subsequent perceived risk of getting caught (β = 0.31 [0.02–0.60]). More precisely, when a person's detection certainty increased by 0.1, or 10 percentage points (e.g., they were detected in 2 out of 10 instead of 1 out of 10 crimes), their risk perceptions rose on average by just 0.03 units.
Modeling the updating process: changes in general risk perceptions.
In Model 2, which encompasses the other covariates in addition to the detection-crime ratio, the effect estimate of the detection certainty decreases and loses its statistical significance. However, the direction of the estimate remains the same (β = 0.21 [−0.08 to 0.51]). It indicates that a person's general risk perception increased on average by 0.02 units when their experienced detection rate rose by 10 percentage points.
Beyond this small, nonsignificant effect of the experienced detection certainty, our model estimated a more precise influence of criminal offending on risk perceptions. If the adolescents committed crimes repeatedly instead of only once or twice in a given period, they reported reduced risk perceptions (3–9 offenses: β = −0.12 [−0.24 to 0.00]; ≥10 offenses: β = −0.20 [−0.33 to −0.07]). Like in previous research, the commission of more crimes thus was related to somewhat lower risk perceptions (e.g., Hirtenlehner and Wikström, 2017; Kaiser et al., 2022; Matsueda et al., 2006; Schulz, 2014). For all other covariates that include vicarious information about criminal experience, the model instead estimates small and statistically insignificant effects. This lack of impact is also consistent with previous research, which suggests that vicarious information is less relevant for updating risk perceptions among individuals who havepersonal experiences of committing crimes in a given period (which all individuals in our offender-only sample have; Paternoster and Piquero, 1995; Pogarsky et al., 2004; van Veen and Sattler, 2018).
Model 3 includes personal morals as a moderator of the updating process and thus produces some estimates for assessing our hypotheses. Although the effect estimates of all other covariates remain basically the same in this model specification, the inclusion of the personal morals variable as a moderator affects the relationship between the detection-crime ratio and the risk perceptions. To present the results of this moderation more intuitively, we used the regression estimates to compute average marginal effects (AMEs) across the dimension of personal morals (see Figure 2 and Table 2). 19 The AME estimates are consistent with hypothesis H1 and the direction of the differential effects reported by Pogarsky et al. (2005). They indicate that only those with weak morals showed a substantial increase in risk perceptions after experiencing a somewhat higher detection certainty (e.g., AMEPMorals=−2.0 = 1.42 [0.25 to 2.60]). More precisely, when the detection ratio of an individual with a personal morals score of −2.0 (i.e., with very weak morals) increased by 10 percentage points, their risk perceptions rose by 0.14 units on average. The risk perceptions of individuals with stronger morals, in contrast, were not substantially (and only insignificantly) affected by an increased detection certainty (e.g., AMEPMorals=1.0 = 0.04 [−0.31 to 0.39]). However, as a note of caution: The interaction effect between personal morals and the detection-crime ratio was estimated relatively imprecisely. The actual strength of the moderation in the juvenile population thus remains relatively uncertain (β = AMEPMorals – AMEPMorals+1 = −0.46 [−0.91 to −0.01]).

Average marginal effects of the detection-crime ratio on risk perceptions by personal morals.
Average marginal effects of the detection-crime ratio on risk perceptions by personal morals.
Discussion
The current study supplements the relatively small body of research investigating the differential updating of risk perceptions. It revisits the question of whether people learn differently from police detection depending on their personal morals. Studying this question with a sample of German juveniles, our longitudinal models produced two main findings.
The
Confronted with this outlook, some scholars suggest that deterrence may only work for some people or in some situations and highlight the need to study processes of differential deterrability (e.g., Hirtenlehner, 2020; Loughran et al., 2018; Piquero et al., 2011). The
Our theoretical section suggests that there are at least three perspectives that could explain this differential updating finding.
Beyond replicating and further exploring the differential updating process, future research should also tackle some of the other issues not fully addressed in the current paper. First, it should investigate the updating process in an offense-specific manner. Most studies on deterrence (including the current one) examine the impact of the
Second, a “dirty little secret” of deterrence theory is that research typically only explains a small fraction of the variation in sanction threat perceptions (Paternoster, 2010, p. 808). This observation also applies to the current study: Our fixed effects models account only for up to 5.5 percent (Model 3) of the intraindividual perceptual variation. This low explanatory power results from the fact that the current and most previous studies restrict their pool of independent variables to experiential determinants. They include only covariates with information about personal or vicarious experiences with criminal behavior and its consequences (including punishment). And even among those experiential determinants, they typically lack some relevant measures, such as indicators on the arrests or detections of relevant others (e.g., peers; see Matsueda et al., 2006; Pogarsky et al., 2004). Moreover, experts have highlighted that most updating models do not account for mental shortcuts (cognitive heuristics) that people use to form their risk perceptions (e.g., Kreager and Matsueda, 2014; Pickett and Roche, 2016; Piquero et al., 2011). Recent research, however, has shown that such shortcuts may play a crucial role in how individuals assess their detection risk (Pogarsky et al., 2017; Thomas et al., 2018). Future research should consider these cognitive heuristics in updating models and explore how they relate to differential experiential learning.
Finally, the current and most previous studies focused either on the perceptual or the behavioral linkage. Therefore, they could not assess the hypothesis of perceptual deterrence theory that getting caught should indirectly lead to less criminal behavior via a change in sanction threat perceptions (see Figure 1). This lack of a complete analysis is particularly true for research on the moderation of the deterrence process by personal morals. So far, one line of research has investigated whether people with different morals update their risk perceptions differently after arrest (the current study, see also Pogarsky et al., 2005). The other line analyzed whether the impact of sanction threat perceptions on criminal behavior varies by personal morality (e.g., Hirtenlehner and Reinecke, 2018; Kroneberg et al., 2010; Svensson, 2015). Although both lines of research have produced promising findings, suggesting that personal morality may indeed moderate the deterrence process, no study to date has investigated the moderation of the perceptual and behavioral processes simultaneously. Only such a complete analysis can ultimately show that deterrence is, for those with weak morals, a more critical process than indicated by previous nondifferential research.
Supplemental Material
sj-docx-1-euc-10.1177_14773708221128515 - Supplemental material for Differential updating and morality: Is the way offenders learn from police detection associated with their personal morals?
Supplemental material, sj-docx-1-euc-10.1177_14773708221128515 for Differential updating and morality: Is the way offenders learn from police detection associated with their personal morals? by Florian Kaiser, Björn Huss and Marcus Schaerff in European Journal of Criminology
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