978501
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Quiz von connie.coombs, aktualisiert more than 1 year ago
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Erstellt von connie.coombs
vor etwa 10 Jahre
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Frage 1
Frage
Wilcoxon is used when testing for a difference.
Antworten
- True
- False
Frage 2
Frage
Chi-square is used when testing for a correlation.
Antworten
- True
- False
Frage 3
Frage
Spearman's Rho is used when testing for a difference.
Antworten
- True
- False
Frage 4
Frage
Mann-Whitney is used when testing for a difference.
Antworten
- True
- False
Frage 5
Frage
What statistical test is used when the data is correlational?
Antworten
-
Mann-Whitney
-
Chi-Square
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Spearman's Rho
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Wilcoxon
Frage 6
Frage
What statistical test is used when the data is nominal?
Antworten
-
Spearman's Rho
-
Chi-Square
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Wilcoxon
-
Mann-Whitney
Frage 7
Frage
Which statistical test is used when there is an independent groups design?
Antworten
-
Wilcoxon
-
Spearman's Rho
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Chi-Square
-
Mann-Whitney
Frage 8
Frage
Which three of these apply to the Wilcoxon test?
Antworten
-
Data is ordinal, interval or ratio
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Data is nominal
-
Used when testing for a difference
-
Used with an independent groups design
-
Used with a repeated measures design
-
Used when the sets of data are related
Frage 9
Frage
Psychologists most often use a probability of 95%, so there's a 5% chance the results aren't significant.
Antworten
- True
- False
Frage 10
Frage
Which type of error states that the results aren't significant, when in fact they are?
Antworten
-
Type 1
-
Type 2
Frage 11
Frage
Which type of error states that the results are significant, when in fact they're due to chance?
Antworten
-
Type 1
-
Type 2
Frage 12
Frage
A one-tailed test is used in conjunction with a directional hypothesis.
Antworten
- True
- False
Frage 13
Frage
A two-tailed test can only be used with a non-directional hypothesis.
Antworten
- True
- False
Frage 14
Frage
What is a directional hypothesis?
Antworten
-
A hypothesis that states the results will go a certain way, e.g. 'I predict women eat more food than men'
-
A hypothesis that states there will be a difference, but doesn't say in which way, e.g. 'I predict there will be a difference between the amount that women and men eat'
Frage 15
Frage
What is a null hypothesis?
Antworten
-
States there will be a difference, but doesn't say which way results will go, e.g. 'I predict there will be a difference in the amount women and men eat'
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States the results will be due to chance, e.g. 'There will be no significant difference in the amount men and women eat'
Frage 16
Frage
Give two strengths of lab experiments.
Antworten
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Greatest control over independent variable
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Higher ecological validity
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Few demand characteristics
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Control over ethics
Frage 17
Frage
Give two weaknesses of natural experiments.
Antworten
-
Demand characteristics
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No control over extraneous variables
-
Low ecological validity
-
Ethical issues
Frage 18
Frage
Give one strength and one weakness of field experiments.
Antworten
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Higher ecological validity than lab studies
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Full control over independent variables
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Less control over extraneous variables
-
High risk of demand characteristics
Frage 19
Frage
Demand characteristics are where the participants become aware (either consciously or subconsciously) of the aims of the study, and alter their behaviour as such.
Antworten
- True
- False
Frage 20
Frage
What are investigator effects?
Antworten
-
Anything the investigator does which has an effect on the behaviour of participants
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Where the participants become aware of the aims of the study and alter their behaviour as such
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Features of a research situation that alter the behaviour of participants, such as the time of day, temperature, noise levels etc.
Frage 21
Frage
What is the difference between participant effects and participant variables?
Antworten
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Participant effects is a general term to acknowledge the fact that p's behaviour can be influenced by being in a study; participant variables are characteristics of individual p's that can influence the outcome of a study
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Participant effects are characteristics of individual p's that can influence the outcome of a study; participant variables is a general term to acknowledge the fact that p's behaviour can be influenced by being in a study
Frage 22
Frage
Single blind tests are where the participants don't know the aims of the study.
Antworten
- True
- False
Frage 23
Frage
Double blind tests are where the neither participants nor experimenters know the aims of the study.
Antworten
- True
- False
Frage 24
Frage
How can situational variables be overcome? (Give two answers.)
Antworten
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Standardisation
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Double blind
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Counterbalancing
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Anonymity
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Matched pairs
Frage 25
Frage
Order effects can be overcome using counterbalancing.
Antworten
- True
- False
Frage 26
Frage
Volunteer bias can be overcome using random sampling.
Antworten
- True
- False
Frage 27
Frage
There are seven ethical considerations needed when conducting human research.
Antworten
- True
- False
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