# Hypothesis Testing, Parametric Criteria

## 25 terms

### Nothing has an effect on anything else/ nothing is going on

Give example of a null hypothesis?

### Something is having an effect on something else/ something is going on

Give example of a alernative hypothesis?

### H0

What is the Null hypothesis also called?

### Hi

What is the alternative hypothesis also called?

### When the results can be found to be significant using the 5% signifcant level

When can the alternative hypotheis be accepted?

### A hypothesis which predicts that by manipulating the IV there will be a change to the DV. However it doesn't predict what the change will be.

What is a non directional hypothesis? (two tailed)

### A hypothesis which predicts that by manipulating the IV there will be a change to the DV. However it does predict what the change will be.

What is a directional hypothesis? ( one tailed)

### The Non directional hypothesis predicts that there will be a change but doesnt predict was it is. Whereas the Directional hypothesis does predict the change

Whats the difference between a Directional- one tailed and a Non Directional- two tailed hypothesis?

### When we operationalise a variable we develop a way in which the variable under test conditions can be measured

What is Operationalising Variables mean?

### No

Is time a operationalised variable?

### Number of words recalled (to test memory)

Give an example of a variable which has been operationalised?

### Measure the time taken to complete a task in seconds

How can you operationalise time?

### What is the investigation looking to find? Should I use a parametric or non parametric test to analyse the data? What is the experimental design of the study?

What are the three questions which will lead you to the correct statistical test?

### What is the investigation looking to find

What is the first question which will lead to to the correct test? (parametric criteria)

### A difference between two conditions, A relationship between two variables, an assoication/ difference between the frequencies of categorical data

Give some examples of answers for the question what is the investigation looking to find?

### Should I use a parametric or non parametric test to analyse the data

What is the second question which will lead you to the correct test? (parametric criteria)

### Second. Should I use a parametric or non parametric test to analyse the data

Which question has 3 criterion to find the answer? (parametric criteria)

### Use interval data, sample of people from a normally distributed population, the data collected must display Homogeneity of Variance.

What is the criteria for a parametric test?

### V= sd2

How to calculate variance?

### What is the experimental design of the study?

What is the third question which will lead you to the correct test? (parametric criteria)

### Related design- repeated measures or matched pairs Unrelated design- independent groups/ independent measures.

What are the two experiamental designs which can be chosen from question 3 ?

### Similarity

What does Homogeneity mean?

### Interval data

What type of data do parametric tests use?

### Repated measures, matched pairs

Name the two related experimental designs?

### Independent measures

Name the Unrelated experimental design?

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