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# Paired t test

Der Abhängige t -Test (auch Paardifferenzentest; engl. paired t -test) prüft für zwei verbundene (abhängige) Stichproben, ob sich die mittlere Differenz der Messwerte unterscheidet. Dabei wird vorausgesetzt, dass die Differenzen normalverteilt sind A paired samples t-test is used to compare the means of two samples when each observation in one sample can be paired with an observation in the other sample. This tutorial explains the following: The motivation for performing a paired samples t-test. The formula to perform a paired samples t-test Paired T-Test Definition The paired t-test gives a hypothesis examination of the difference between population means for a set of random samples whose variations are almost normally distributed. Subjects are often tested in a before-after situation or with subjects as alike as possible The paired sample t -test, sometimes called the dependent sample t -test, is a statistical procedure used to determine whether the mean difference between two sets of observations is zero. In a paired sample t -test, each subject or entity is measured twice, resulting in pairs of observations Calculate and report the paired t-test effect size using Cohen's d. The d statistic redefines the difference in means as the number of standard deviations that separates those means. T-test conventional effect sizes, proposed by Cohen, are: 0.2 (small effect), 0.5 (moderate effect) and 0.8 (large effect) (Cohen 1998)

A paired t -test just looks at the differences, so if the two sets of measurements are correlated with each other, the paired t -test will be more powerful than a two-sample t -test. For the horseshoe crabs, the P value for a two-sample t -test is 0.110, while the paired t -test gives a P value of 0.045 Der gepaarte t-Test wird immer dann verwendet, wenn man zwar zwei Stichproben (d.h. zwei Gruppen) hat, diese aber verbunden sind. Verbunden bedeutet in diesem Fall, dass jeder Beobachtung aus der ersten Gruppe direkt eine aus der zweiten Gruppe zugeordnet werden kann, die beiden Beobachtungen gehören also zusammen Der gepaarte t-Test untersucht Differenzen bzgl. des Mittelwerts eines Merkmals (im Beispiel: Ruhepuls) zwischen den zwei verbundenen Stichproben Statt einen t-Test für unabhängige Stichproben kann man dann einen gepaarten t-Test berechnen. Matching kann auch innerhalb einer Person (oder einen statistischen Objekt) stattfinden. Wenn wir beispielsweise die Leistung der linken und rechten Niere miteinander vergleichen wollen, würden wir ebenfalls einen gepaarten t-Test verwenden

### t-Test - Wikipedi

• Den t -Test, auch als Students t -Test bezeichnet, verwendest du, wenn du die Mittelwerte von maximal 2 Gruppen miteinander vergleichen möchtest. Zum Beispiel kannst du mit dem t- Test analysieren, ob Männer im Durchschnitt größer als Frauen sind
• A paired t-test is used to compare two population means where you have two samples in which observations in one sample can be paired with observations in the other sample
• Paired samples t -tests typically consist of a sample of matched pairs of similar units, or one group of units that has been tested twice (a repeated measures t -test)
• Der ungepaarte t-Test ist ein t-Test für 2 Stichproben bzw. Gruppen, die voneinander unabhängig sind

The paired t-test is used to compare the values of means from two related samples, for example in a 'before and after' scenario Ungepaarter t-Test: t-Test oder Welch-Test? Der Welch-Test hat viele Vorteile gegenüber dem normalen t-Test. Deshalb empfehlen einige Autoren auch, den Welch-Test statt dem t-Test zu verwenden, unabhängig davon, ob Varianzhomogenität besteht oder nicht A paired samples t-test is used to compare the means of two samples when each observation in one sample can be paired with an observation in the other sample. This tutorial explains how to conduct a paired samples t-test in Stata. Example: Paired samples t-test in Stat h = ttest(x,y,Name,Value) returns a test decision for the paired-sample t-test with additional options specified by one or more name-value pair arguments. For example, you can change the significance level or conduct a one-sided test. example. h = ttest(x,m) returns a test decision for the null hypothesis that the data in x comes from a normal distribution with mean m and unknown variance. The. The paired samples t-test is used to compare the means between two related groups of samples. In this case, you have two values (i.e., pair of values) for the same samples. This article describes how to compute paired samples t-test using R software. As an example of data, 20 mice received a treatment X during 3 months. We want to know whether the treatment X has an impact on the weight of the.

### Paired Samples t-test: Definition, Formula, and Example

Both paired sample sign test and paired sample Wilcoxon sign rank test are alternative non-parametric methods of paired sample t-test. originlab.com Die b eide n Tests, Vorz ei chentest un d Wilcoxon -Test bei verbundenen Sti chpr ob en, sind alternative nichtparametrische M et hode n vo n t-Tests b ei verbundenen Sti chpro be n Ein gepaarter T-Test, der zusätzlich als korrelierter Paar-T-Test / gepaarter Stichproben-T-Test / abhängiger T-Test bezeichnet wird, ist ein statistisches Verfahren, das einen Test für abhängige Variablen durchführt If using a paired t-test is valid, you should use it because it provides more statistical power than the 2-sample t-test, which I discuss in my post about independent and dependent samples. How Two-Sample T-tests Calculate T-Values. Use the 2-sample t-test when you want to analyze the difference between the means of two independent samples. Like the other t-tests, this procedure reduces all of. A Paired T-Test, additionally referred to as correlated pair t-test/paired sample t-test/dependent t-test, is a statistical procedure that runs a test on dependent variables. A paired test is done on similar subjects before the allocation of data and two tests are done before and after a treatment

Paired vs unpaired t-test. The key differences between a paired and unpaired t-test are summarized below. A paired t-test is designed to compare the means of the same group or item under two separate scenarios. An unpaired t-test compares the means of two independent or unrelated groups. In an unpaired t-test, the variance between groups is. Paired 2-sample T-test: Unpaired 2-sample T-test: Usage: When each observation in a sample set is semantically related to one and only one observation in the other set. When the requirement of correspondence for the Paired 2-sample T-test does not hold. Usecase examples: We have a soft-skill course. We measure the performance of our company's employees before and after learning the course to. The paired t-test is also known as the dependent samples t-test, the paired-difference t-test, the matched pairs t-test and the repeated-samples t-test. What if my data isn't nearly normally distributed? If your sample sizes are very small, you might not be able to test for normality. You might need to rely on your understanding of the data. Or, you can perform a nonparametric test that. This guide contains written and illustrated tutorials for the statistical software SAS. Paired t tests are used to test if the means of two paired measurements, such as pretest/posttest scores, are significantly different. In SAS, PROC TTEST with a PAIRED statement can be used to conduct a paired samples t test The paired samples Wilcoxon test (also known as Wilcoxon signed-rank test) is a non-parametric alternative to paired t-test used to compare paired data. It's used when your data are not normally distributed. This tutorial describes how to compute paired samples Wilcoxon test in R.. Differences between paired samples should be distributed symmetrically around the median

The paired t-test is more stronger than unpaired test because it deduces intersubject variability as it compares between the same subject. So, it is theoretically more powerful than the unpaired t-test. It is used to determine whether the mean difference between two sets of observations is zero. Each subject or entity is measured twice, resulting in pairs of observations, in a paired sample t. Paired \(t\)-test is just a different name for two-way anova without replication, where one nominal variable has just two values; the results are mathematically identical. The paired design is a common one, and if all you're doing is paired designs, you should call your test the paired \(t\)-test; it will sound familiar to more people. But if some of your data sets are in pairs, and.

### Paired T-Test -Definition, Formula, Table, and Exampl

1. Paired T-Test Calculator. Dependent T test. Video Information T equal σ calculator T unequal σ calculator. Test calculation. If you enter raw data, the tool will run the Shapiro-Wilk normality test and calculate outliers, as part of the paired-t test calculation. Tails: Significance level (α): Outliers: Effect: Effect type: Effect Size: μ 0: Digits: Enter raw data directly Enter raw data.
2. The paired t-test is also known as the dependent samples t-test, the paired-difference t-test, the matched pairs t-test and the repeated-samples t-test. What if my data isn't nearly normally distributed? If your sample sizes are very small, you might not be able to test for normality. You might need to rely on your understanding of the data. Or, you can perform a nonparametric test that.
3. The paired t-test, or also known as the dependent t-test, tests whether the mean values of two dependent groups differ significantly from each other.It tests whether the mean values of the two groups differ. Before you can calculate a paired t-test you need two dependent samples.A dependent sample is when two samples affect each other
4. paired t test equation and; dependent t test equation; The procedure of the paired t-test analysis is as follow: Calculate the difference (\(d\)) between each pair of value; Compute the mean (\(m\)) and the standard deviation (\(s\)) of \(d\) Compare the average difference to 0. If there is any significant difference between the two pairs of samples, then the mean of d (\(m\)) is expected to.

The paired t-test and the 1-sample t-test are actually the same test in disguise! As we saw above, a 1-sample t-test compares one sample mean to a null hypothesis value. A paired t-test simply calculates the difference between paired observations (e.g., before and after) and then performs a 1-sample t-test on the differences. You can test this with this data set to see how all of the results. A paired t-test (Paired T Distribution, Paired T Test, Paired Comparison test, Paired Sample Test) is a statistical method that compares the mean and standard deviation of two matched groups to determine if there is a significant difference between the two groups. In other words, It tests whether the average difference between the two measurements is statistically significant from zero.

### Paired Sample T-Test - Statistics Solution

The t test investigates the likelihood that the difference between the means of the two groups could have been caused by chance. So the most important results are the 95% confidence interval for that difference and the P value. Learn more about interpreting the results of a paired t test. Before accepting the results, review the analysis. Grundidee. Der Zweistichproben-t-Test prüft (im einfachsten Fall) mit Hilfe der Mittelwerte ¯ und ¯ zweier Stichproben, ob die Mittelwerte und der zugehörigen Grundgesamtheiten verschieden sind.. Die untenstehende Grafik zeigt zwei Grundgesamtheiten (schwarze Punkte) und zwei Stichproben (blaue und rote Punkte), die zufällig aus den Grundgesamtheiten gezogen wurden

### How to Do Paired T-test in R : The Best Tutorial You Will

Der t-Test für abhängige Stichproben testet, ob die Mittelwerte zweier abhängiger Stichproben verschieden sind. SPSS-Menü Analysieren > Analysieren > Mittelwerte vergleichen > t-Test bei verbundenen Stichproben SPSS-Syntax T-TEST PAIRS =Variable1 WITH Variable2 (PAIRED) /CRITERIA=CI (.95) /MISSING=ANALYSIS Der t-Test ist der Hypothesentest der t-Verteilung.Er kann verwendet werden, um zu bestimmen, ob zwei Stichproben sich statistisch signifikant unterscheiden. Meistens wird der t-Test (und auch die t-Verteilung) dort eingesetzt, wo die Testgröße normalverteilt wäre, wenn der Skalierungsparameter (der Parameter, der die Streuung definiert — bei einer normalverteilten Zufallsvariable die. Der t-Test bei verbundenen Stichproben ist hilfreich, um dieselbe Gruppe von Einheiten, die unter zwei unterschiedlichen Bedingungen gemessen wurden, Differenzen zwischen Messungen, die vor und nach einer Behandlung an einer Testperson vorgenommen wurden, oder Differenzen zwischen zwei Behandlungen desselben Probanden zu analysieren

Paired Student t-Test; Sources After testing for normal distribution (Kolmogorov-Smirnov test), paired Student t-test was used to compare data between healthy and treated animals Comment: Ich finde weder im www, noch in Statistikbüchern eine deutsche Übersetzung für paired Student t-Test. Meine Statistikkenntnisse reichen leider nicht aus, um den Begriff abzuleiten, und der mathematische. This video will walk you step by step how to perform a paired t-test in Excel and also briefly explain the reason. Please subscribe to be updated for future. Paired t-test using Stata Introduction. The paired t-test, also referred to as the paired-samples t-test or dependent t-test, is used to determine whether the mean of a dependent variable (e.g., weight, anxiety level, salary, reaction time, etc.) is the same in two related groups (e.g., two groups of participants that are measured at two different time points or who undergo two different. In this case we have two sets of paired samples, since the measurements were made on the same athletes before and after the workout. To see if there was an improvement, deterioration, or if the means of times have remained substantially the same (hypothesis H0), we need to make a Student's t-test for paired samples, proceeding in this way: . a = c(12.9, 13.5, 12.8, 15.6, 17.2, 19.2, 12.6, 15. A paired t-test is equivalent to a one-sample t-test. Unpaired means that both samples consist of distinct test subjects. An unpaired t-test is equivalent to a two-sample t-test. For example, if you wanted to conduct an experiment to see how drinking an energy drink increases heart rate, you could do it two ways. The paired way would be to measure the heart rate of 10 people before they. Statistical Significance of the Paired Sample T-Test Results. In order to determine the statistical significance of the paired sample t-test, one should consider the practical as well as statistical significance. The paired sample t-test includes a statistical significance and this is mainly determined by using the p-value. In most cases, it is the p-value gives the probability of observing. Technically, a paired samples t-test is equivalent to a one sample t-test on difference scores. It therefore requires the same 2 assumptions. These are. independent observations; normality: the difference scores must be normally distributed in the population. Normality is only needed for small sample sizes, say N < 25 or so. Our exam data probably hold independent observations: each case holds. Bart et al. (1998) looked at how large a sample is required for a paired t- test using simulation. He found that for moderately skewed or bimodal populations, the sample size should exceed 10, whilst for highly skewed populations the sample size should exceed 20. However, these guidelines should be treated with caution, especially if you have extreme outliers or large numbers of zeros in the. Paired vs. ratio t tests. The paired t test analyzes the differences between pairs. For each pair, it calculates the difference. Then it calculates the average difference, the 95% CI of that difference, and a P value testing the null hypothesis that the mean difference is really zero. The paired t test makes sense when the difference is consistent. The control values might bounce around, but.

To run a Paired Samples t Test in SPSS, click Analyze > Compare Means > Paired-Samples T Test. The Paired-Samples T Test window opens where you will specify the variables to be used in the analysis. All of the variables in your dataset appear in the list on the left side. Move variables to the right by selecting them in the list and clicking the blue arrow buttons. You will specify the paired. dict.cc | Übersetzungen für 'paired t test' im Englisch-Deutsch-Wörterbuch, mit echten Sprachaufnahmen, Illustrationen, Beugungsformen,. Paired t-test compares study subjects at 2 different times (paired observations of the same subject). Unpaired t-test (aka Student's test) compares two different subjects. The paired t-test reduces intersubject variability (because it makes compar..

### Paired t-test - Handbook of Biological Statistic

• In statistics, a paired difference test is a type of location test that is used when comparing two sets of measurements to assess whether their population means differ. A paired difference test uses additional information about the sample that is not present in an ordinary unpaired testing situation, either to increase the statistical power, or to reduce the effects of confounders
• The paired t-test is used to test the null hypothesis that the average of the differences between a series of paired observations is zero. Observations are paired when, for example, they are performed on the same samples or subjects. Required input. Select the variables for sample 1 and sample 2, and a possible filter for the data pairs
• imize the chance of the treatment and control.

### Gepaarter t-Test: Vorher/Nachher-Mittelwertsvergleich

1. T-Test für eine Stichprobe mit SPSS. Dieser T-Test, auch als One Sample T-Test bezeichnet, prüft ob sich die Stichprobe von einem vorher definierten Wert unterscheidet. In unserem Beispiel soll geprüft werden, ob der BMI der Stichprobe nach dem Training größer als 25 ist, dem von der WHO veröffentlichten Grenzwert für Übergewichtige.
2. Paired t-tests can be conducted with the t.test function in the native stats package using the paired=TRUE option. Data can be in long format or short format. Examples of each are shown in this chapter. As a non-parametric alternative to paired t-tests, a permutation test can be used
3. e if there are any differences between two continuous variables, on the same scale, from related groups. For example, comparing 100 m running times before and after a training period from the same individuals would require a paired t-test to analyse. Be aware that paired t-test is a parametric.
4. t.test(x,y,paired=TRUE)wobei der Vektor x die Daten der ersten, und der Vektor y die Daten der zweiten Erhebung enthält. Zweistichprobe . Sollen Daten untersucht werden, die in zwei unabhängigen Gruppen erhoben wurden (je eine Erhebung) wird der t-Test für Zweistichproben durchgeführt. Die Daten beider Erhebungen müssen zunächst (per F-Test) auf Varianzhomogenität untersucht werden.
5. what i did, i tried run two sample sample t-test instead of paired t-test. is it wrong? can u please suggest me what is the right way to get an accurate answer? thank you. Reply. Charles says: October 17, 2019 at 3:02 pm Probably two sample t test is correct, but I would need more information to say for sure. Since wet and dry seasons are different, it is unlikely that a paired t test would b
6. A paired t-test is used when we are interested in the difference between two variables for the same subject. Often the two variables are separated by time. For example, in the Dixon and Massey data set we have cholesterol levels in 1952 and cholesterol levels in 1962 for each subject. We may be interested in the difference in cholesterol levels between these two time points. However, sometimes.
7. Der t-Test ermöglicht es Dir, aufgrund der Realisationen Deiner Stichprobe(n) Hypothesen über den oder die Mittelwerte der Grundgesamtheit zu prüfen, wenn Du für die Grundgesamtheit Normalverteilung unterstellen kannst aber die Varianz der Grundgesamtheit nicht kennst. Damit ist dieser Test für Fälle geeignet, für die der Gauß-Test nicht anwendbar ist  ### Gepaarter t-Test Statistik - Welt der BW

• The Paired-Samples T Test procedure compares the means of two variables for a single group. The procedure computes the differences between values of the two variables for each case and tests whether the average differs from 0. The procedure also automates the t-test effect size computation. Example In a study on high blood pressure, all patients are measured at the beginning of the study.
• A paired t-test can be run on a variable that was measured twice for each sample subject to test if the mean difference in measurements is significantly different from zero. For example, consider a sample of people who were given a pre-test measuring their knowledge of a topic. Then, they were given a video presentation about the topic, and were tested again afterwards with a post-test
• us 0.26 and because the absolute value of that 2.26 is not greater than the critical value 2.262, we cannot reject this null hypothesis. That is there is no evidence to indicate that the two tips produce different hardness readings.
• Übersetzung für 'paired t test' im kostenlosen Englisch-Deutsch Wörterbuch und viele weitere Deutsch-Übersetzungen
• This is the main difference between a paired t-test and 2 independent samples t-test. The second scenario where a paired test is used is, when the two samples are related to each other by any means. For example, if the sample one consists of brother and sample two consists of a sister, then the pairs of brother and sister are obtained through these two samples. Hence, here in this scenario.
• Review and cite PAIRED T-TEST protocol, troubleshooting and other methodology information | Contact experts in PAIRED T-TEST to get answer
• paired testicles paarige Hoden {pl}anat.zool. sb. paired (himself / herself) jd. paarte sich to get paired off verkuppelt werden paired comparison test paarweise Vergleichsprüfung {f}QM paired comparison test <PCT> paarweise Unterschiedsprüfung {f}spec. paired t test t-Test {m} für verbundene Stichprobenstat. list-paired exchange of kidney

Paired t-test. Note that the output shows the p-value for the test, and the simple difference in the means for the two groups. Note that for this test to be conducted correctly, the first observation for Before is student a and the first observation for After is student a, and so on. t.test(Score ~ Time, data = Data Ich hatte die Hoffnung, dass es einen standardisierten nested paired t-test gäbe. Ich habe zumindest das Konzept einer nested anova gefunden, die die Bildung von Gruppen und Untergruppen berücksichtigt. Ich habe ja eigentlich 5 Gruppen (die Wiesen) und pro Wiese mit den Plots (bzw. den Plot-Paaren) wieder Untergruppen. Also die Ergebnisse pro Wiese sind voneinander abhängig und die Plots. Typically, a paired t-test starts with two hypotheses. The first hypothesis is the null hypothesis, and it basically says that the mean of the differences between the two groups is equal to zero. In other words, the null hypothesis is that taking the medication results in no difference in systolic blood pressure T.TEST(array1,array2,tails,type) The T.TEST function syntax has the following arguments: Array1 Required. The first data set. Array2 Required. The second data set. Tails Required. Specifies the number of distribution tails. If tails = 1, T.TEST uses the one-tailed distribution. If tails = 2, T.TEST uses the two-tailed distribution A paired samples t test will sometimes be performed in the context of a pretest-posttest experimental design. For this tutorial, we're going to use data from a hypothetical study looking at the effect of a new treatment for asthma by measuring the peak flow of a group of asthma patients before and after treatment. Quick Steps . Analyze -> Compare Means -> Paired-Samples T Test; Drag and drop.

### Gepaarter t-Test: Anwendungsbeispiele StatistikGur

To perform a paired t-test in Excel, arrange your data into two columns so that each row represents one person or item, as shown below. Note that the analysis does not use the subject's ID number. In Excel, click Data Analysis on the Data tab. From the Data Analysis popup, choose t-Test: Paired Two Sample for Means. Under Input, select the ranges for both Variable 1 and Variable 2. In. dict.cc | Übersetzungen für 'paired t test' im Deutsch-Dänisch-Wörterbuch, mit echten Sprachaufnahmen, Illustrationen, Beugungsformen,.

### Den T-Test verstehen und interpretieren mit Beispie

dict.cc | Übersetzungen für 'paired t test' im Spanisch-Deutsch-Wörterbuch, mit echten Sprachaufnahmen, Illustrationen, Beugungsformen,. A paired samples t-test is performed when an analyst would like to test for mean differences between two related treatments or conditions. If the same experimental unit (subject) is measured multiple times, and you would like to test for differences, then you may need to perform a repeated measures analysis such as a paired t-test. A paired sample t-test is the simplest version of within. [Paired t Test Pretest Checklist] The paired t Test has one pretest criteria, normality of differences. We'll check for this prior to running the paired t Test. This example uses the data set Ch09-Example01-PairedtTest.sav. 01:36. HERSCHEL KNAPP [continued]: This data set contains three variables. Initials as a string variable that contains the initials of each participant. Pretest is a. • e if one group statistically significantly outperformed the other, the Paired t Test is used when there's only one group. In a one group design, we can ad
• A paired (or dependent) t-test is used to compare the means of observations that are not independent of one another. NodePit. Products; Nodes; Workflows; NodePit for KNIME; v4.2. Select your KNIME version: v4.2 v4.1 v4.0 v3.7 v3.6. v4.3 Nightly. Login Signup; Nodes. Analytics. Statistics. Hypothesis Testing . 0 × Paired t-test. KNIME Statistic Nodes version 4.2.1.v202008251159 by KNIME AG.
• e the significance of a difference in blood pressure before and after ad
• Webapp for statistical data analysis
• The paired t-test compares the mean . difference of the values wit h zero. It . depend s upon the mean difference, the standard deviatio n of the . diffe rences and the numbe r of cases. Various.  ### Student's t-test - Wikipedi

• paired. a logical indicating whether you want paired t-tests. alternative. a character string specifying the alternative hypothesis, must be one of two.sided (default), greater or less. Can be abbreviated. additional arguments to pass to t.test
• T-Test of difference = 0 (vs not =): T-Value = -0.46 P-Value = 0.650 DF = 27. The sample size, the standard deviation, and the estimated difference between the means are exactly the same for both tests. But note the whopping difference in p-values—0.000 for the paired t-test and 0.650 for the 2-sample t-test
• Paired t Test Menu location: Analysis_Parametric_Paired t. This function gives a paired Student t test, confidence intervals for the difference between a pair of means and, optionally, limits of agreement for a pair of samples (Armitage and Berry, 1994; Altman, 1991).. The paired t test provides an hypothesis test of the difference between population means for a pair of random samples whose.    The Paired-Samples T Test procedure compares the means of two variables for a single group. The procedure computes the differences between values of the two variables for each case and tests whether the average differs from 0. Example. In a study on high blood pressure, all patients are measured at the beginning of the study, given a treatment, and measured again. Thus, each subject has two. A paired t-test is useful when comparing related cases. By averaging the differences between the scores of the paired cases, you can determine whether the total difference is statistically significant. Choose an unpaired t-test when these conditions apply: You have two independent samples of scores. That is, there is no basis for pairing scores in sample 1 with those in sample 2. All scores. The paired t-test, or dependant sample t-test, is used when the mean of the treated group is computed twice. The basic application of the paired t-test is: A/B testing: Compare two variants; Case control studies: Before/after treatment; Example: A beverage company is interested in knowing the performance of a discount program on the sales. The company decided to follow the daily sales of one. t-Test für abhängige Stichproben. Der t-Test für abhängige Stichproben, oder auch gepaarter t-Test genannt, überprüft, ob sich die Mittelwerte zweier abhängiger Gruppen signifikant voneinander unterscheiden. Hierbei wird geprüft, ob die Mittelwerte der beiden Gruppen voneinander abweichen Der t-Test für unabhängige Gruppen setzt Varianzhomogenität voraus.Liegt Varianzheterogenität vor (also unterschiedliche Varianzen), so müssen unter anderem die Freiheitsgerade des t-Wertes angepasst werden.Ob die Varianzen nun homogen (gleich) sind, lässt sich mit dem Levene-Test auf Varianzhomogenität prüfen

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