Quiz
Chi -square
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Fragen in diesem Quiz (14)
1When is it appropriate to use chi-square
- AWhen you want to see whether there is an association between two categorical variables
- BWhen you want to compare male to female verbal reasoning scores that are normally distributed and both samples show homogeneity of variance
Correct answer - CWhen you want to compare the frequency of males to females who study Psychology
- DYou want to compare male to female verbal reasoning scores that are not normally distributed and do not show homogeneity of variance
- E1, 3, 5
2The correct way to report the results of the chi-square?
- At(1)=12.13, p<0.001
- Bχ² (1) = 12.13, p<0.001
- Cχ² (1) = 11.83, p=.001
- Dχ² (1) = 12.84, p<.00
- Eχ² (1) = 12.13, p=ns
3Referring to the SPSS output below again, which statements below are TRUE?
(Tick all statements that are TRUE)
- A3 year old children were significantly more likely to pass the false belief task than 4 year olds
- BResults of the chi-square test indicate that there was a significant association between age and passing the false belief task
- CResults of the chi-square indicate that four year olds were signficantly more likely to pass the false belief task than 3 year olds
- DResults of the chi-square indicate that there was no significant association between age and likelihood of passing the false belief task
- E3 year olds were not significantly less likely to pass the false belief task than 4 year olds
- F2 and 3
- G4 and 5
4Which of the statements are true about chi-square
- AThe Chi-square test is a non-parametric test of difference
- BThe Chi-square test compares the frequency of observed events to the frequency expected by chance
- CChi-square tests are appropriate for analysing categorical variables
- DTo perform a chi-square, the data needs to be normally distributed and for more than one sample, need to show homogeneity of variance
- EChi-square tests can compare data from related group
- F3, 4, 1
- G1, 2, 3
5A chi-square was used to compare the frequency of cats who danced when trained with food or trained with affection.
The results of the chi-square were: χ²(1) = .98, p=.94
Which statements below are TRUE?- AResults of the chi-square indicate a significant association between the type of training cats received and the likelihood that they would dance
- BResults of the chi-square indicate a non-significant association between the type of training cats received and the likelihood that they would dance
- CThe degrees of freedom were 5
- DThe value of the Pearson chi-square statistic is .98
- EThe results of the chi-square indicate that cats trained with food were significantly more likely to dance than cats trained with affection
- F2 and 4
- G5 and 6
6referring to the SPSS output below
what statements are true
- AResults of the chi-square indicate a significant association between the type of training cats received and the likelihood that the cat would dance
- BResults of the chi-square indicate that cats were not significantly more likely to dance when training with food as opposed to affection
- Cχ²(1)=1.32, p=.252
- DThe total number of cats who danced was 15 compared to 65 who did not dance
- E1 and 2
- F2 and 4
7non - parametric tests can be used as an alternative to parametric tests
- ARichtig
- BFalsch
8non- parametric tests can use data at a nominal data
- ARichtig
- BFalsch
9Non-parametric tests are often not as powerful as parametric statistical tests: can fail to detect [blank_start]differences[blank_end]
- Adifferences
10used in unrelated data. Every participant / case yields data for only one category.
- ARichtig
- BFalsch
11Used to answer questions about the [blank_start]proportions[blank_end] of a popular distribution
used to [blank_start]compare[blank_end] different levels of one variables
Compares the sample proportions to population proportions as specified by the null hypothesis- Aproportions
- Bcompare
12what are the observed frequencies
- AThe observed frequencies are the numbers of participants measured in individual categories
- BThe observed frequencies are the numbers of participants in all categories collectively
13The observed frequencies are then compared to frequencies predicted by the null hypothesis (the expected frequencies)
- ARichtig
- BFalsch
14The goodness of fit looks at categories of one variable
- ARichtig
- BFalsch
Informationen
- Beschreibung
- MY DEGREE Quiz am Chi -square, erstellt von Toyin Oshodi am 06/03/2017.
- Autor
- Toyin Oshodi
- Sprache
- English
- Aufrufe
- 0
- Verlauf
- Erstellt am 6 Mär 2017 · aktualisiert am 7 Mär 2017
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