BTEC Applied Psychology: Quantitative Research Quiz

What is the primary purpose of experimental design in quantitative research?

• To describe characteristics of a population

• To determine the relationship between variables

• To test hypotheses under controlled conditions

• To collect qualitative data

Which of the following is NOT a component of a good experimental design?

• Random assignment

• Control group

• Biased selection

• Replicability

In data analysis, what does the term "mean" refer to?

• The middle value in a data set

• The most frequently occurring value in a data set

• The sum of all values in a data set divided by the number of values

• The difference between the highest and lowest values in a data set

Which statistical test would be most appropriate for comparing the means of two independent groups?

• Chi-square test

• T-test

• ANOVA

• Pearson correlation

What is the purpose of using a control group in an experiment?

• To ensure that the experiment can be replicated

• To provide a standard against which the experimental group can be compared

• To increase the sample size of the experiment

• To manipulate the independent variable

What does a p-value indicate in statistical tests?

• The probability that the results occurred by chance

• The effect size of the independent variable

• The reliability of the data

• The variance explained by the independent variable

Which of the following is a measure of variability?

• Mean

• Median

• Standard deviation

• Mode

In the context of experimental design, what is random assignment?

• Selecting participants for the study at random

• Assigning participants to experimental and control groups by chance

• Randomly selecting which variables to manipulate

• Choosing the order of experiments randomly

What does an ANOVA test compare?

• The means of two groups

• The correlation between two variables

• The means of three or more groups

• The variance within a single group

Which of the following best describes the term "independent variable"?

• The variable that is measured in the experiment

• The variable that is manipulated by the researcher

• The outcome variable that is influenced by the independent variable

• A variable that is not affected by other variables in the experiment