BEST1702 - Introduction of Social Research Methods Assignment

Assignment Task

Hypotheses are an important and common feature of quantitative research design and may also be incorporated within qualitative research design. Select all statements below that are true.

•  Hypotheses reflect our working assumptions about our research findings
•  Hypotheses are direct expectations and are linked to the aims of our study
•  A hypothesis is a predictable statement about the relationship we expect to find between two (or more) variables
•  All hypotheses indicate the direction of the relationship we expect to find
•  A hypotheses can be one-tailed or two-tailed
•  The rationale for a hypothesis should be based upon existing theory or previous research

A researcher is interested in exploring whether attraction to another person is based upon the presence of similar facial features.

•  List the two variables that would feature in the researcher’s hypothesis (type freely in the boxes below).

Variable 1

Variable

•  In the box below have a go at writing the hypothesis

Nominal variables that are measured using two values are called:

 Dichotomous Binomial Binary

Nominal variables that have more than two values are called

 Multinomial Interval Polychomous

A researcher wanted to explore the relationship between completing exams or coursework and anxiety in university students. In the freetext below box, state the Independent Variable and provide an explanation for your choice.

A convenience sample is the random selection of people from the general population that can be easily accessed by the researcher.

• Is this statement true or false?
• What broad sampling category does convenience sampling fall into?

The accepted statistical significance level of 5% or 0.05 means that our finding can occur by chance on five occasions or less if we tested our finding one hundred times.

Is this statement true or false?

An experiment involves manipulating the level of a variable to determine its causal effect on a variable that you measure, while maintaining control over all other variables?

• Is this statement true or false?
• What is the measured variable called?
• List two ways / methods used to maintain control over other variables?
• What is the term used to describe these ‘other variables’?

A researcher designed a study to compare the number of rooms cleaned by a group of 10 housekeepers during their shift on two occasions: once when they had breakfast and once when they went without breakfast.

• What type of experimental study design is this?
• List another term for a between-subjects design?

Name two methods for randomly assigning participants to experimental conditions?

What is the ‘gold standard’ of experimental study designs (state in full)?

• What is this type of study more commonly called?

What statistical test is used to compare two groups?

• What statistics / figures do we examine when comparing groups?

 Mean Chi-square Sig. level SD

What statistical test is used to test for a relationship between two or more variables?

• What type of relationship is shown in the below scatterplot?

Are the results presented for diet in the below image significant? 

The reliability of a measure is about its ability to measure what it intends to measure. Is this statement true of false?

The below image depicts a:

Normal Distribution Bell Curve

If a correlation coefficient has a probability value of 0.03, then:

• The hypothesis is supported
• The results are important
• There is a probability of 3% that our result is due to chance, assuming the null hypothesis to be true
• There is only 3% chance that the results are correct

In the text box below, provide an explanation of the null hypothesis in your own words.

Can you name the most serious type of statistical error and explain it in your own words.

To interpret the results of an independent samples t-test a research would use which row from the below image?

• The equal variances assumed row
• The equal variances not assumed row

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