# Research methods

• Created by: jp3louis
• Created on: 05-04-18 11:28
what is an extraneous variable
Any variable other than the IV that has an effect on the DV
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What is a confounding variable
Any Variable other than the IV that may have affected the DV so we cant be sure what actually affected the DV
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What are demand characteristics
Any cue from the researcher that may be interpreted by participants as revealing the purpose of the investigation
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What are Investigator effects
Any effect of the investigators behaviour that may change the outcome
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What is independent groups and evaluate
2 different groups experience 2 different conditions. Not the same participants so participan
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What is repeated measures and evaluate
Both groups do the same tasks. May be order effects though so you could counter balance
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what are matched pairs and evaluate
Matched to reduce participant variables. No order effects as only tested once but they can never be matched completley.
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what are the ethical issues
Informed consent, deception, protection from harm, privacy and confidentiality
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What are covert observations
Unawear they are being looked at
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What is the correlation coefficient ?
A number between -1 and +1 that represents the direction and strength between co-variables
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Describe content analysis
Observational research where people are studied indirectly through communications and media.
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What is thematic analysis
qualitive approach to analyse explicit ideas within the data. Themes emerge once its coded
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list the steps for a thematic analysis
familiarise yourself with data, Begin coding, search for themes, Review themes, Name themes, produce report
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Define validity
The extent to which an observed effect is genuine. Does it actually measure what it should
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What is concurrent validity
extent to which the results of a new test match another estabished test.
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what is a type 1 error?
Accepting the alternative hypothesis when we should have accepted the null
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What is a type 2 error?
Accepting the null when we should have accepted the alternative
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why do we use p=0.05
it is a good comprimise between too strict and too leniant - middle of type 1 and type 2
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what is nominal data/
Data in specific categories - tally charts and the info can be represented in bar charts as the data is seperate
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What is ordinal data
Ordered in some way and is subjective opinions. Eg rate between 1-10 your love for london
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What is interval data?
Standardize measurement units and cant be manipulated - like weight and length. Most precicse
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## Other cards in this set

### Card 2

#### Front

What is a confounding variable

#### Back

Any Variable other than the IV that may have affected the DV so we cant be sure what actually affected the DV

### Card 3

#### Front

What are demand characteristics

### Card 4

#### Front

What are Investigator effects

### Card 5

#### Front

What is independent groups and evaluate