On the interpretation of German einige. The effect of tense and cardinality Maya Cortez Espinoza & Lea Fricke* Abstract. We present a study investigating the effect of tense (past vs. future) on the computation of scalar implicatures in connection with the German quantifier einige ‘some’ in an interactive experiment, which included a financial incentive for partici- pants to consider whether another speaker would share their judgment. We tested the hypothesis that scalar implicatures are less frequently drawn in future tense than in past tense. In addition, we studied to what extent sets with various cardinalities are prototypical representatives of einige + N. We hypothesized that larger cardinalities are more prototypical representatives of the quantifier einige than smaller cardinali- ties (relative to the cardinality of the total set). We analyzed the experimental data with probabilistic Bayesian models with a linking hypothesis between participants’ re- sponses and readings based on utility maximization in simple decision problems. In line with the hypotheses, we found that less scalar implicatures are drawn in future tense than in past tense, which replicates the results of previous research on English some, and that with an increase in set size acceptance of statements involving einige also increases. Keywords. Scalar implicatures; German einige; tense; quantifier interpretation; Bayesian Modelling; experimental pragmatics; 1. Introduction. A sentence like (1-a), involving the quantifier some, usually triggers the scalar implicature (SI) (1-b). (1) a. Some students danced. b. SI: Not all students danced. A factor that influences the computation of SIs, but that has not yet received much attention in the literature, is tense, to the effect that SIs are less frequently drawn in future tense than in past tense. Normally, the Gricean reasoning process upon hearing a statement involving the quantifier some, like (1-a), goes roughly as follows: Under the assumption that the speaker is cooperative and follows the maxim of quantity, a hearer assumes that she chose some as the maximally informative expression and that she cannot truthfully use the stronger expression all. Thus, the hearer concludes that not all students danced.1 Moreover, as observed by Geurts (2010), the assumption that the speaker is maximally in- formed about the issue at hand (“competence assumption”) is crucial for drawing the implicature. Not being able to truthfully assert the stronger alternative All students danced is compatible with *We would like to thank Edgar Onea, Daniele Panizza, Swantje Tönnis, and Alexandre Cremers for their insights in fruitful disscusions and helpful suggestions. We further thank Simon Dampfhofer, Kathrin Hirsch, Kassandra Keinz, Lea-Sophie Kravanja, Michaela Leeb, Melanie Loitzl, and Eva Winkler for their help conducting this experiment. This research was funded by LingLab Graz, which we thankfully acknowlegde. Authors: Maya Cortez Espinoza, Karl- Franzens-Universität Graz (maya.cortez-espinoza@uni-graz.at) & Lea Fricke, Karl-Franzens-Universität Graz/Ruhr- Universität Bochum (lea.fricke@rub.de). 1Alternatively, SIs can be derived from applying a silent logical operator on various sites (Fox 2007, Chierchia 2013). With this account, SIs can be derived both at the utterance level and in embedded positions. Proceedings of ELM 2: 49-60, 2023 c©2023 Maya Cortez Espinoza and Lea Fricke Published by the LSA with permission of the author(s) under a CC BY license. 49 https://doi.org/10.3765/elm https://www.elm-conference.net/ not being opinionated about the stronger alternative. Thus, to take the “epistemic step” (Sauerland 2004) and conclude that the speaker implicated that not all students danced, the hearer needs to assume that the speaker is competent about the issue. As the future is inherently uncertain, a statement about the future, like (2) is a mere prediction. For this reason, it makes sense for the speaker to use a weak expression to make her statement semantically compatible with both outcomes (Some or all students danced). On considering this, the hearer will not take the epistemic step and no implicature will be drawn. (2) Some students will dance. This effect of tense has to our knowledge only once been investigated for English and Italian in an acquisition experiment by Chierchia et al. (1998)2. The authors argue that a prediction about the future constitutes a context in which an SI is suspended. In the experiment, children had to judge the truth of statements made by a puppet, which contained one of the scalar expressions some and or. Two contexts were tested. In the first context, which Chierchia et al. (1998) label ‘description mode’, the target sentence is in past tense and in the second, which is called ‘prediction mode’, it is in future tense. With regard to some, they report preliminary results according to which there was 14% and 34% acceptance for the SI violation in English and Italian respectively in the description mode and more than 75% acceptance in both languages in the prediction mode. The final results for or are similar: In the description mode, the acceptance rate for the SI-violation is lower than 33% in both languages while it is at ceiling in the prediction mode. The results of this study support the hypothesis that tense affects the computation of SIs and that SIs are less frequently drawn in future tense than in past tense. However, its limitations are that there are no data for adult speakers and that in the case of some only preliminary data are reported. We aim to replicate these results for German einige ‘some’ with adult speakers. For the interpretation of the quantifier einige or some, another factor beside the SIs comes into play, namely the question which cardinalities can be felicitously described with this quantifier. According to the set-theoretic definition, a statement involving some, like (1-a), is true iff the intersection between the set of dancers and the set of students is non-empty (e.g. Barwise & Cooper 1981). However, previous research suggests that the exact cardinality of the intersection matters to people, i.e. some cardinalities are more typical representatives of some than others. Van Tiel & Geurts (2014) studied the interpretation of quantifiers in English. They presented participants with pictures of ten circles, of which varying numbers were black, together with the sentence Quantifier of the circles are black. Participants had to either judge the truth value of the statement or rate on a Likert scale how well the statement describes the situation (typicality). They found that for the quantifier ‘some’, the numbers 2–4 received the highest truth ratings while the numbers 4–6 received the highest typicality rating. Another study investigating the processing of some, Degen & Tanenhaus (2015), included naturalness ratings of a statement like “You got some of the gumballs” with contexts of varying numbers from a total of 13 gumballs. Additionally to judging naturalness, participants could judge a statement as false. The authors found that statements in which some referred to the set sizes 1, 2, 3 or 13 gumballs were rated as less natural than statements in which some referred to sets of 6–8 2We thank an anonymous reviewer for pointing out this paper to us. Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 50 https://doi.org/10.3765/elm https://www.elm-conference.net/ gumballs. When some referred to a set of one gumball, the statement was rated as false in 12% of the cases. They also found that particularly for small but also for large set sizes, exact number terms were rated as more natural than some. We note that in both studies numbers that roughly represent half of the total sample receive the highest naturalness/typicality ratings and that it appears to be odd to refer to a set size of 1 with some. Responsible for the latter effect seems to be the plural marking of the noun phrase which leads to a plurality inference, as discussed in Spector (2007). In our study, we compare the acceptability of statements involving einige referring to different set sizes ranging from 1–9. Note that German has two different versions of ‘some’, manche and einige. According to our intuitions, manche is associated with smaller numbers compared to einige. Additionally, when stressed einige has a prominent reading of ‘many’, as example (3) shows. (3) A: Wie viele Leute haben bereits gegessen? (‘How many people have eaten already’?) B: Naja, schon EINIGE. (‘Well, QUITE a few’.) Thus, we want to test the hypothesis that statements involving einige will receive higher acceptance when referring to sets with higher cardinalities, relative to the cardinality of the total set, than when referring to sets with smaller cardinalites. A further goal of our experiment was to control for the kind of reasoning induced by the ex- perimental task. Experiments with a classic truth-value judgement task design often only test for the general availability of a reading but do not control for the status of that interpretation with the consequence that it is not clear whether participants’ judgments are based on a semantic inter- pretation or whether other factors, such as communicative relevance, were considered. Previous research has shown that the nature of the task crucially affects the rate of drawing implicatures. For example, with regard to embedded implicatures, Geurts & Pouscoulous (2009) showed that an inference task lead to a higher implicature rate compared to a truth-value-judgement task. Benz & Gotzner (2014) suggested that relevance of the SI in the context of the experiment is a decisive factor for its computation. In our experiment, we employed the method developed by Fricke et al. (2022). It aims to target interpretations that are of communicative relevance, that is, interpretations that the participant deems likely to be shared by another language user. To induce this kind of recursive thinking in participants, the design includes a monetary incentive: Participants were told that they would lose money if another person did not share their judgment. This way, every single response had direct financial consequences for the participant, and it was in their own interest to think carefully about each item. The linking hypothesis is based on utility theory for simple decision problems: Participants aim to maximize their expected utility measured in terms of financial payoff.3 2. Experiment. We investigate the following hypotheses in our experiment: • The computation of SIs of German einige is affected differently by future tense and past tense to the effect that the rate of implicatures is higher in past tense. 3We are aware that utility theory has received criticism, e.g. by Tversky (1975) and Kahneman & Tversky (1979). However, in our experiment the translation between decisions and financial benefits is quite simple. Moreover, we introduced some level of control regarding the effect of bias in participants’ decisions and found no such effect. Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 51 https://doi.org/10.3765/elm https://www.elm-conference.net/ • Larger cardinalities are more prototypical representatives of the quantifier einige than smaller numbers and thus statements involving the quantifier einige will receive higher acceptance rates when referring to larger sets than to smaller sets. • The set of cardinality 1 is a particularly bad representative of the quantifier einige due to the plurality inference. 2.1. PARTICIPANTS. We tested 32 native speakers of German (mostly Austrian German) (mean age = 23.8 years, SD = 5.5 years, 15 female and 17 male), all of which were university students or former university students. They were recruited via a university-newsletter and received a financial compensation varying between 8.50C and 11.20C, with a mean of 10.18 and a standard deviation of 0.56, depending on their performance on control items. 2.2. MATERIALS. The target sentences were conditional statements containing the scalar term einige. They were presented in the context of a story about nine candidates in a reality show, who did activities together. The stimuli had the form of bets, made by a person named Lina about activities to happen on the show and the participants’ task was to decide whether the bets were won (called ‘accepting the bet’ in the following) or lost (‘rejecting the bet’), thereby judging the truth of the target sentences. We manipulated three factors. The first factor was CARDINALITY, which represents the number of candidates that were in- volved in an activity and which ranged from 0 to 9. The 0-context yields a false target sentence, the 9-context yields an SI-violation and the numbers 1–8 constitute different manifestations of the quantifier einige. CARDINALITY was tested within participants and within items. The second factor was TENSE. The verb of the target sentences was either in past tense (Per- fekt)4 or in future tense (Futur I). This factor was tested at the participant level. Participants were assigned either past tense or future tense. (Half of the participants saw bets in past tense and the other half in future tense.) For past tense, people were told that the show had been prerecorded already before Lina placed the bets but aired later, and therefore, Lina worded her bets in past tense. For future tense, Lina placed her bets before the recording of the show and therefore, bets were worded in future tense. The third factor, ROLE, was manipulated at the participant level as well (meaning half of the participants acted in role 1 and the other half in role 2). In role 1, participants had to decide whether or not to redeem bets at a betting office. They received 5C starter cash. Redeeming a bet cost a fee of 10 cents each. For each accepted bet that was actually won the participants received 30 cents payout. Thus, in effect, the participants gained 20 cents for an accepted bet which was won, and they lost 10 cents for an accepted bet that was lost. In this role, a participant profited financially from accepted bets. To avoid a bias towards accepting borderline cases in this role, we installed the redeeming fee, with which participants would lose money when randomly submitting bets and would therefore consider whether a betting office agent might share their judgment. In role 2, participants acted as a betting office agent. They had to decide for each redeemed bet whether it was won or not. Participants received 15C starter cash. For an accepted bet, they had to pay out 20 cents, while their budget remained unchanged when they rejected a bet. Also, participants were told that Lina, the person who had placed the bets, would raise an objection if a bet that was in fact 4In colloquial German, perfect tense is the default tense to talk about the past, see e.g. Klis et al. (2017). Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 52 https://doi.org/10.3765/elm https://www.elm-conference.net/ won had been rejected. This would lead to a monetary loss of 30 cents. Thus, participants had to consider whether their judgement would be shared by Lina. In sum, in role 2, participants profited from rejected bets. To avoid a bias towards rejecting bets, we installed the financial deduction for incorrect decisions. These conditions for the two roles are summarized in Table 1. Role Status of bet Accepted bet Rejected bet Role 1 In fact won +20ct 0ct In fact lost -10ct 0ct Role 2 In fact won -20ct -30ct In fact lost -20ct 0ct Table 1: Payoff table Note that in calculating the compensation that a participant received, decisions on test items were always considered correct; only mistakes on fillers affected the final compensation negatively. However, participants did not know this before the experiment. To sum up, the factorial design was 10 CARDINALITY x 2 TENSE x 2 ROLE. There were two lexicalizations per cardinality, which varied between lists. Test items were distributed over 16 experimental lists (half of them in future, half of them in past tense) with 20 test items and 2 participants per list. In addition to the test items, each list contained 32 filler items. 12 of of them were test items from a different experiment, and 9 uncontroversially won and 9 uncontroversially lost bets served as controls. Figure 1 is an example of a test item for future tense. The stimuli were shown along with a table which indicated for each candidate whether she was involved in the activity in question. The numbers of involved candidates ranged from 0 to 9 (CARDINALITY). Additional context resolved the antecedent of the conditional as true. Note that target sentences had the form of conditional sentences because we had an additional hypothesis about upward and downward entailing envi- ronments that we will not report on due to a procedure error, which happened on the level of participant instructions and which turned part of the data invalid. 2.3. PROCEDURE. The experiment took place in the lab of the theoretical and empirical linguis- tics research group at the University of Graz. Before the start of the actual experiment, participants saw 5 training items. They a) helped to get the participants accustomed to the task and b) made clear how to handle the conditional construction, which included the target sentence. Then, de- pending on the role they were assigned, participants each received 5 or 15C starter cash in stacks of 10 and 20 cent coins. The participant saw the betting slips one at a time in a randomized order and had to decide whether to accept (pay out/redeem) the bet or not. If they wanted to accept, they had to return the betting slip together with the money to the experimenter. The experimenter entered the participant’s decision into an excel sheet that automatically calculated the sum the par- ticipant received as financial compensation after the experiment. The participant did not receive any feedback as to their gains and losses from individual bets, neither during nor after the exper- iment. After the first half of the betting slips, there was a short break. The experiment took 25 to 40 minutes in total. Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 53 https://doi.org/10.3765/elm https://www.elm-conference.net/ Figure 1: Sample item, cardinality 7, future tense 2.4. RESULTS. 2.4.1. DATA EXCLUSION. The data of one participant (role 1, past tense) was excluded due to erring three out of 18 times on control items. Therefore, data from 31 participants was subjected to further analysis (7 for the combination of role 1 and past tense, and 8 for all other TENSE x ROLE combinations). 2.4.2. DESCRIPTIVE STATISTICS. Figure 2 shows the acceptance rates of bets by CARDINAL- ITY and TENSE. In the cardinality-0 context, in which no candidate was involved in the activity, acceptance is at 0 in both tenses. Acceptance in the cardinality-9 context, which constitutes a SI violation, differs between the tenses. In the past tense, acceptance is at 60% while it is at 93.8% in future tense. Turning to the acceptance rates for cardinalities that represent einige ‘some’, we ob- serve a) acceptance for cardinality 1 is particularly low (0/13.3%) and b) that acceptance increases with increasing cardinality. Moreover, acceptance rates for cardinalities 1–4 differ between the tenses; they are higher in past tense than in future tense. Our descriptive data shows that the two roles hardly differ in acceptance rates, as can be seen in Table 2. Therefore, we did not consider the factor ROLE in the Bayesian modelling. Role Won: count Lost: count 1 108 (72.0%) 42 (28.0%) 2 115 (71.9%) 45 (28.1%) Table 2: Accepting rates between roles Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 54 https://doi.org/10.3765/elm https://www.elm-conference.net/ Figure 2: Percentage of accepted bet by tense and cardinality 3. Bayesian Modelling. 3.1. CONCEPT. We created a Bayesian model based on the assumption that a participant aims to maximize her utility for each decision in the experiment. In this model, a participant’s expected utility to act (uact), shown in (4) is the sum of the products of i) the subjective probability they assign the decision to be right (PRs act, true) and the payoff for being right and ii) the subjective probability they assign to the decision being wrong (PRs act, false) and the payoff for being wrong. PRs act, true is different for the act of accepting and rejecting, since PRs reject, true = 1 - PRs accept, true. (4) uact = payoffact, true ∗ PRs act,true + payoffact, false ∗ (1− PRs act, true) The probability for accepting a bet is then determined from the overall utility (the difference be- tween uaccept and ureject) as log odds: (5) p(accept) = logistic((uaccept − ureject)) Positive overall utilities, therefore, mean higher than 50% chance of accepting bets, negative util- ities mean lower than 50% of accepting bets and utilities further away from 0 mean stronger ten- dencies to accept/reject. Intuitively, therefore, strong PRs and big rewards/punishments influence u greater than weak PRs and small rewards/punishments. In our model, we do not assume dif- ferences in PRs for different people as we did not have any hypotheses on some people acting differently than others. With the utility formula being constant across conditions, only subjective probabilities al- ternate. These conceptually depend on two factors: the computation of an SI and the sensitiv- ity of einige to different cardinalities. Firstly, we assumed a general probability PR(SI) for interpreting einige with the SI not all. The alternative, PR(noSI), is the probability for inter- preting einige without the SI. As there are no other competing readings of einige, we assumed PR(noSI) = 1 − PR(SI). Our model assumes this probability to be equally accessible to all Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 55 https://doi.org/10.3765/elm https://www.elm-conference.net/ speakers of German. Furthermore, our model assumes these probabilities to be different for the two tense levels: The probability to interpret einige without the SI is higher in future tense than in past tense. Of the two probabilities PR(SI) and PR(noSI) either both, only one, or none of them con- tributes to PRs accept, true, depending on whether the context supports the respective reading, see Table 3. A participant’s PRs accept, true is therefore the sum of her commitments to supported read- ings. This means that for cardinality 0, where none of the readings are supported, PRs accept, true is set to 0, irrespective of the probabilities of the two readings. For cardinality 9, PRs accept, true depends solely on PR(noSI), which enables us to tease apart the two readings’ probabilities. Cardinality NoSI-reading SI-reading 0 not supported not supported 1–8 supported supported 9 supported not supported Table 3: Possible contexts and supported readings The second factor that contributed to PRs act, true is cardinality sensitivity. For cardinalities 1– 8, both the noSI- and the SI-reading are supported and PRs accept, true yields 1, but in these cases, cardinality sensitivity accounts for lower accepting rates. In our model, cardinality sensitivity is represented by a Dirichlet distribution over cardinalities 1–8. The values of prototypicality are determined by the model itself through sampling. Concep- tually, we were interested in the prototypicality of all cardinalities relative to each other with the most prototypical cardinality having PRs accept, true = 1. For this, each prototypicality value is di- vided by the highest prototypicality value. To sum up, Table 4 shows all the possible cases for calculating PRs accept, true. They depend on cardinality (c) and tense (t). Case Calculation of PRs accept, true if c = 0: = 0 else if 1 ≤ c ≤ 8: = prototypicality(c) max(prototypicality) else if c = 9 and t = past: = PR(noSI)past else (c = 9 and t = future): = PR(noSI)future Table 4: Calculating PRs accept, true 3.2. IMPLEMENTATION AND OUTPUT. We conducted a MCMC Simulation to construct our Bayesian Model in STAN using the RStan package in R (Stan Development Team 2022b,a, R Core Team 2022). We used uniform priors in order not to skew our results with previous hypothe- ses. When running the model, we used 15000 iterations, the first 5000 of which were dismissed as warm up. All models had excellent convergence as evidenced by visual checks and Rhat values (1.00–1.01). After sampling, means were computed for each desired parameter. For model com- parison, we used the bridgesampling package (Gronau et al. 2020) and computed Bayes Factors Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 56 https://doi.org/10.3765/elm https://www.elm-conference.net/ (BF) for samples of 8000 iterations each. Figure 3: Probability density plot for PR(SI) (with PR(noSI) = 1-PR(SI)) As shown in Table 5, the probability to interpret einige without the SI is 13% higher for future tense than for past tense. PR(SI) PR(noSI) past 0.38 0.62 future 0.25 0.75 Table 5: SI probabilities We additionally created a reduced model that does not distinguish between reading probabil- ities for tenses and compared it to our original model, which turned out superior to the reduced model (BF = 5.15). Figure 3 shows a probability density plot for the movements of the parameter around the vari- able space during the simulation. The x-axis shows different probability values. For prototypicality values, see Table 6 and the associated probability density plot in Figure 4. Cardinality 1 has the lowest prototypicality value with 0.05. Cardinalities 2–7 are quite similar to each other with values ranging from 0.12 – 0.14, and cardinality 8 has the highest prototypicality value with 0.18. Model comparison with a reduced model, in which no cardinality relative prototypicality was assumed, yielded that our original model is superior (BF > 150). Cardinality 1 2 3 4 5 6 7 8 Prototypicality 0.05 0.12 0.13 0.13 0.13 0.13 0.14 0.18 Table 6: Prototypicality values As our descriptive data suggested that there might be a difference for cardinality sensitivity between tenses (small numbers received less acceptance in future tense than in past tense), we Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 57 https://doi.org/10.3765/elm https://www.elm-conference.net/ Figure 4: Probability density plot for prototypicality values constructed another model that specified two different Dirichlet distributions for prototypicality (future vs. past tense).5 Model comparison showed that the original model was better than this more complex model (Bayes Factor > 150). 4. Discussion. We found that SIs are drawn less reliably in future tense than in past tense. The method we employed was intended to evoke rational behavior and targeted interpretations that are relevant from a communicative perspective. Replicating the findings by Chierchia et al. (1998) with this method suggests that the SI-difference caused by tense that was found in that study is a robust effect and holds in communicative settings. As discussed in the introduction, this phenomenon can be explained pragmatically, namely with the epistemic step not being possible for future situations. However, in the case of our ex- periment, this explanation is not completely conclusive. In our design, the context was exactly the same for future tense and past tense. In both cases, the bet was made about an unknown situation. Still, a clear difference was found between future tense and past tense. This hints at the effect of tense on SIs being at least partly in the semantic domain – possibly the effect is a grammaticalized instance of the pragmatic principle described above. A further finding of our experiment is that the acceptability of statements involving einige increases with growing set sizes. This deviates from the findings in the literature on English some, according to which medium set sizes receive the highest ratings. This difference may stem from the fact that einige competes with another lexical item, manche, which is according to our intuitions associated with small numbers, at least in some cases.6 Furthermore, stressed einige has a very 5Note that we did not have a hypothesis about this. So this is a post hoc analysis. 6For manche to be felicitous, a basic set must be specified, which is not the case for einige. Compare (i-a) in an out of the blue-context: (i) a. Heute um sechs Uhr haben sich einige/#manche Leute am Hasnerplatz verabredet. Proceedings of ELM 2: 49-60, 2023 Maya Cortez Espinoza and Lea Fricke: On the interpretation of German einige. 58 https://doi.org/10.3765/elm https://www.elm-conference.net/ prominent reading of many, which is clearly not the case for English some. Although, descriptively, we observed a tendency in the data for lower cardinalities to be less accepted in future tense than in past tense, this difference was not meaningful in the Bayesian analysis. Nevertheless, it would be interesting to gather more data, as an experiment targeted at this issue may find this to be significant. Another idea for future research is testing whether there is a contrast between the rates at which SIs are drawn between the English going-to-future and will-future. As the former is used to refer to future events that are more certain than the latter, we expect the future effect to be smaller for the going-to-future and the rate of drawn SIs to be higher. References Barwise, Jon & Robin Cooper. 1981. 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