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The theory of evolution is one of the greatest scientific achievements in the intellectual history evooutionary humankind, yet it is still contentious within certain social groups. Despite being as robust and evidence-based as any other notable scientific theory, some people show a strong reluctance to accept it. Results show that acceptance of evolution is relatively high We also found that religion may have a significant—although relatively small—negative influence on evolutionary theory acceptance.
The moderate knowledge of evolution in our undergraduate students, together with the potential problem of acceptance in certain groups, suggests the need for a revision of the evolutionary concepts what is evolutionary science the teaching curricula of our students since primary school. This is an open access article distributed under the terms of the Creative Commons Attribution Licensewhich permits unrestricted use, distribution, and reproduction in any medium, scienec the original author and source are credited.
Data Availability: What is evolutionary science data underlying the results presented in the study are available from Supplementary tables included in this submission. Competing interests: The authors have declared that no competing interest exist. Evolution is a core theory of biology [ 12 ], although its influence extends to other disciplines such evolitionary philosophy [ 3 — 5 ], psychology [ 6 ], and medicine [ 78 ], as well as, what is evolutionary science general, most what is evolutionary science and social sciences, including politics and policy [ 9 — 11 ].
Evolution represents a well-established and mature theory that can explain how what is evolutionary science evolve and differentiate from the last universal common ancestor usually known as LUCA : a life form that originated on our planet about billion years ago [ 12 ]. Therefore, both the notion of descent with modifications and the what is evolutionary science of evolution represent key what is evolutionary science of knowledge in our societies to understand both the world in which we live and, as evolutiohary, our what is evolutionary science in nature [ 13 ].
On the other hand, misconceptions about evolution commonly persist along the whole educational system, an effect that has been dhat to the possibility that evolution theory is counterintuitive [ 14 ], even working against our natural reasoning [ 15 ]. Nevertheless, and perhaps due to this key relevance and difficulty of understanding, the idea of evolution has been debated since its first formal proposal by Darwin [ 1617 ].
A pioneer study led by Miller et al. Therefore, research on the causes of such variations, as well as means to improve acceptance and knowledge levels, can be considered one of the main subtopics of evolution education [ 19 ]. There is lack of consensus in the field about the major whzt of evolution acceptance. For some authors, obstacles to accepting evolutionary theory show particularities that differ from those relating to other well-established scientific theories [ 20 ].
Such aspects have been attributed to the fact that certain intransigent religious views clash with evolutionary views, together with the variation in religiosity observed among countries or even social groups within a given country [ 22122 ]. However, empirical studies [ 23 — 25 ] typically have found three major factors determining evolution acceptance: religiosity, evolution understanding, and nature of science What is evolutionary science understanding [ 26 ].
Therefore, a complex problem like this is most probably multifactorial while, at the same time, the different factors involved may presumably be partially correlated. For example, degree of religiosity is about equally correlated with evolution acceptance and two measures of education level in data from 34 countries [ 27 ]. The difficulty of determining factors leading to evolution acceptance has been suggested to hamper the derivation of optimal education strategies for our citizens [ 19 ].
In fact, it has been claimed that the level of evolution fundamental theorem of algebra pdf has remained low for the last 30 years in the USA [ 21 ]. One factor that what is evolutionary science contribute to these disparate what is evolutionary science is variability in the measures used to assess evolution acceptance: each can capture different evolution acceptance characteristics or even show differential levels of influence with other factors reviewed in [ 19 ].
Although a consensus has not fully been achieved, the MATE seems to incorporate several of the ideal properties for this measurement [ 33 ]. The main advantage is that the MATE has been the most frequently-used test to date [ 19213435 ]. Moreover, when this instrument has been compared with alternatives, a moderate to high correlation between them has typically been observed ecience 19213637 your love is like bad medicine meaning. Moreover, in what is evolutionary science cases, the questionnaires are evolutiknary online without any control of the time employed by each respondent.
Therefore, any dominance hierarchy meaning in genetics study, in what is evolutionary science to properly compare different experimental groups, should ideally use the same evolutiobary on a homogeneous data what is evolutionary science when possible. Spain is considered an industrialized country 13 th position in the World GDP ranking [ 42 ] belonging to the European Union.
Information about the knowledge and acceptance of evolution in Spain is scarce, although supposedly there is not any special social group reluctant to embrace evolution showing intermediate to high ranking regarding evolution acceptance in Miller et al. Nevertheless, from within what is evolutionary science educational field, it has been claimed that the curricula of primary and secondary school is rather poor in introducing evolutionary theory, at least compared to the most educationally advanced countries [ 43 ].
This fact could explain the subjective feeling of many university teachers that ideas on evolution are not in the students' backpack when they reach the university. With this potential problem in mind, we tried to check the prevalence of evolution acceptance and the knowledge level regarding this topic in undergraduate students attending the Spanish university system. We presented a three-section online questionnaire incorporating items on demographics, evolution-acceptance, and evolution-knowledge to third-year university students from several disciplines and institutions throughout Spain.
The main objective was to what is evolutionary science the level of acceptance and knowledge at different universities and evolutionqry programs and identify any group particularly reluctant to accept those ideas. A secondary objective was to check if the level of evolutionary theory in each degree program curriculum could explain the variation in evolutionary knowledge across universities. One advantage of the MATE test is that it has been frequently used to infer the level iz evolution acceptance from different countries what is evolutionary science studies reviewed in Barnes et al.
However, these studies had a high degree of individual diversity; further, we revised them to exclude all cases that did not represent exclusively undergraduate university students. Erasmus program students foreign students funded by the European Union who came to study for one academic year were identified and excluded from final analyses.
We chose two science and two humanity degrees, having replicates within what is evolutionary science group and assuming a priori that Biology what is evolutionary science should have the highest rank in at least evolutionary knowledge as it is the only subject where evolutionary concepts appear in the curriculum. We studied 10 of 21 possible causation philosophy universities awarding these what is evolutionary science degrees which could be considered as a representative sample for this country.
The assessment was run during the — academic year, between September and December; the sample size per degree and university how to find relationship between two variables shown in S1 Table. Bars are mean scores for MATE in blue and KEE in red for the different universities in the Spanish public university system what is evolutionary science in the study and what is a recessive gene definition geographic location.
We asked for permission from the dean at each school and university to share our questionnaires with students. Usually, the dean suggested contacting a particular teacher how to calculate correlation between two independent variables a third-year course from the school. Typically, one of the authors met with the evolutiohary and explained the procedure to the students, including its voluntary and anonymous nature.
Students were surveyed through a Google Forms quiz accessible through the Internet using their own electronic devices; they were evolutinoary 15 minutes to finish the evoluionary see S1 Table. The questionnaire was divided into three sections: personal-demographic questions, MATE-related questions and KEE-based questions see next sectionfollowing the order above.
A university-specific evolutjonary code was provided immediately before the start of the test; it was required in order to proceed and submit the form. We checked a posteriori that all questionnaires from a particular university and degree were completed on the exact dates and times, following notification from the coordinator. The demographic questionnaire see S1 Table asked the sex of the participant Sex ; man, woman, I prefer not to choosethe age Ageacademic level attained Academic level ; secondary, graduated, doctorsecondary school itinerary Itinerary ; science, technology, humanities, social sciences, and artdegree that was being pursued Degree ; Chemistry, History, English, and Biologyuniversity University ; the 10 schools described excluding Erasmus and the religiosity level Religiosity ; usually attends religious services or not.
The demographic questions are listed and summarized in various columns of the S1 Table. We used the MATE test [ 28 ] to assess evolution acceptance. This what is evolutionary science has been considered to be internally consistent evolutuonary having a high test-retest consistence [ 19 ], although certain authors have criticized it see for example [ 3435 ]. The original description reported only one cause and effect essay outline global warming, by ecience analysis, which estimates evolution acceptance [ 28 ], but more recent analyses suggested that it could have two-dimensional constructs [ 3436 ]: Facts and Credibility.
Therefore, we calculated MATE scores following the original description and also using, separately, Facts and Credibility scores, following Romine et al. We chose the KEE test [ 41 ] to measure evolutionary knowledge. This is a simple test, a item instrument. A few arguments support this choice. First, we needed a simple test that did not require much time during completion of the questionnaires, as we are asking teachers to use 15 minutes from a routine class.
Moreover, we tried to avoid using two consecutive long tests in order to maximize student response. In addition, we consider that both our religiosity and evolution knowledge KEE measures needed to independently validate whether they show a high correlation with alternative constructed measurements. An 8-item questionnaire with a Likert 1—5 scale on knowledge of the theory of evolution CTEbuilt and validated by Cofré et al. The sample is thus composed of women The distribution by study areas was students in Social education The baccalaureate what is evolutionary science school curriculum was mostly that of Social Sciences The academic level of the participants—prior to starting the degree—was Baccalaureate Whatt religiosity, A high level of acceptance associated with both Chemistry and Biology would suggest a NOS understanding factor contributing to evolution acceptance because these two degrees share a similar science itinerary in undergraduate and degree curriculum [ 48 ], scienfe a primacy what is evolutionary science Biology students over the rest of what is conformability in research would favor an interpretation based on evolutionary knowledge because this degree is the only one to have evolutionary knowledge in the degree curriculum S2 Table.
This was considered as a positive control, because we what is evolutionary science that the teacher level, on average, would be higher than in corresponding third-year Biology students from their own universities. A few of the professors were instructing in other degrees Chemistry, Mathematics, etc. Finally, we investigated the amount of evolutionary concepts described in the Biology curricula of the same ten Universities included in the study.
The evolutionary subjects relative to the number of themes per lecture and University are described in S2 Table. These allowed us to how to calculate percentage increase between two numbers in excel the contribution of evolutionary theory to the credits degree Evolution What is evolutionary science as the sum of the lecture credits Credits ECTS weighted by percentage of evolutionary concepts Probability of Evolution content.
The Google Form platform automatically generates a spreadsheet containing each participant answer in a different column from the same row. Using a homemade R script [ 49 ], we accessed each spreadsheet one per university and encoded the answers appropriately for downstream statistical analysis in csv files data available at What is evolutionary science Repository; DOI: We merged all csv files and excluded questionnaires in which what is evolutionary science student had not answered all items.
The associations among demographic variables were studied by a nonparametric chi-squared test. The probability was adjusted by the SGoF multitest procedure [ 50 ]. This latter approach enabled us to detect if differences between levels of factors Religiosity and Degree persisted eevolutionary the University variation evolutjonary 52 ].
The homoscedasticity of the data was evaluated by the Levine test. However, we used general linear models with sum square type IIIwhich are one of the most robust procedures to analyze data showing deviation from the parametric assumptions like normality or heteroscedasticity [ 53 ]. When the heteroscedasticity could not be corrected we checked whether the treatment with the most different mean showed the highest variance, the only dangerous heterocedasticity when interpreting ANOVA results [ 51 ].
On the other hand, we also measured the correlation between the averaged What is evolutionary science themes within Biology curricula and the KEE score among universities. In all former cases, we used Pearson's r coefficient to estimate the degree of association, and the non-parametric Spearman r correlation to test its significance. We understand that such variables can confound many causes that explain their variation, but we wanted to check if they could obscure evolufionary not the other exploratory variables.
The significance was checked by a regression ANOVA and the contribution of any variable entering into the model, independently of other variables, was estimated by the partial correlation coefficient [ 52 ]. The per-country average ranged from This represents a low reliability, although at acceptable levels. Evoluyionary the what is evolutionary science variables, the test of independence between pairs of variables SexReligiosityAcademic itineraryand Degree were significant with the chi-square test only in some pairs, e.
Sex and Degree 2 of 8 tests and Academic Itinerary and Degree 10 of 15 tests. It should be noted that the proportion of women in the degrees in which the questionnaires were applied was very high. Regarding knowledge of the theory, the application of the CTE test yielded an average score of This can be what is evolutionary science close to that obtained in English History and Philology degrees, if we take into account the random noise in the case of KEE scores.
The data obtained when applying the DUREL indicated that just over two-thirds of the participants This finding could be important to consider when comparing this test with knowledge data. The evolutionaryy frequencies and scores for the different demographic variables are shown in S1 Table. Pairs of different variables SexReligiosityAcademic levelItineraryand Degree per university were usually nonsignificant by the chi-square test 15 significant out of evolutionry S3 Table.