You use a Unrelated T Test becuase

difference, interval and unrelated design

When using Spearmans Rank or Pearson's r test, the calculated/observed value must be...

Equal to or MORE than critical value

In a normal distribution curve the

mode mean and median are at the same mid point

What is a null hypothesis?

It suggests there is not a relationship between variables.

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AQA Psychology Research Methods

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Questions 20

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1
An advantage of observations is.
It is scientific
It is objective
It is valid
It is ethical
2
You use a Unrelated T Test becuase
difference related design ordinal data
association interval data
difference, ordinal, unrelated design
difference, interval and unrelated design
3
Which is the most reliable research method?
Case studies
Lab experiments
Semi-structured interviews
Non participant observations
4
A disadvantage of case studies are..
They lack external validity
They lack internal validity
They are quatitiative
They are objective
5
When using Spearmans Rank or Pearson's r test, the calculated/observed value must be...
Less than or equal to critical value
Equal to critical value
Equal to or MORE than critical value
Less than critical value
6
Which 2 types of validity are external?
Ecological and concurrent
Face and concurrent
Temporal and ecological
Face and temporal
7
Which correlation coefficient represents a strong positive correlation?
+0.50
+0.76
+0.92
+0.4
8
Which section of a scientific report must inferential statistics be presented?
Discussion
Methodology
Introduction
Abstract
9
In a normal distribution curve the
mean, mode and median are spread out
median and mode is higher than the mean
mode mean and median are at the same mid point
mean is higher than the mode and median
10
What is the type of graph used for a correlation?
Hisogram
Scattergram
Line graph
Scatter graph
11
When testing nominal data and a correlation design, which test should be used?
Chi-Squared
Correlation co-efficient
t-test
Sign Test
12
What are inferential statistics?
Descriptive statistics
Tests of probability
Hard maths
Test of significance
13
When testing interval data with a matched pairs design, which test should be used?
Chi-squared
Mann-Whitney
Wilcoxon
Related t-test
14
What are the 3 D's when choosing a stats test?
Design, Description, Data
Data, difference, Dance
Data, design, difference
Design, Data, Degrees of freedom
15
Which experimental design is used in a Sign Test
Unrelated design
Independent design
Correlation design
Related dseign
16
What is a null hypothesis?
It suggests that the relationship is reliable.
It suggests there is a relationship is objective.
It suggests there is not a relationship between variables.
It suggests that the variables have a positive relationship.
17
How can the reliability of a questionnaire be assessed?
Counter balancing
Inter rater reliability
Sign Test
Test-Retest
18
A parametric test can be used with which data?
Negative correlation
Normal distribution
Skewed distruibution
Positive correlation
19
The usual level of significance in Psychology is...
+0.50
0.01
0.05
-0.35
20
The most accurate level of measurement used in Psychology is...
Nominal
Ordinal
Interval
Quantititive

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