# Chapter 4: Quantitative Methodologies: An Overview

Quizzes give you the chance to test your knowledge through multiple choice questions, short answers, matching activities and other revision tools.

1. Match the definition to the correct research term:

Research term

• Correlation
• Hypothesis
• Independent variable
• Dependent variable
• Probability sampling
• Pilot study
• Descriptive statistics
• Non-probability sampling
• Inferential statistics
• Deductive reasoning
• Single blind study
• Mode
• Double blind study
• Bias
• Control group
• Generalizability
• Median
• Placebo

Definition

• The presumed effect
• A statement which predicts the relationship between the variables that are to be measured during a study
• When the findings are distorted
• When either the researcher or the participant does not know which intervention or treatment the participant has received
• Enable extrapolations to be drawn to the wider population
• A small scale version of the larger planned study
• A sampling strategy which means that potential participants have an equal or random chance of being invited to take part
• Participants who receive the conventional (usual) or placebo intervention in a randomised controlled trial
• When the researcher and the participant do not know which intervention or treatment that the participant has received
• The middle value when all the scores or cases are placed in order
• Testing a theory or hypothesis
• Application of the findings to the wider population
• Measures of central tendency
• A mock or dummy treatment
• The presumed cause that causes the effect
• The most commonly occurring score or case
• Link or association

Answer:

• Correlation - link or association
• Hypothesis - a statement which predicts the relationship between the variables that are to be measured during a study
• Independent variable - the presumed cause that causes the effect
• Dependent variable - the presumed effect
• Probability sampling - a sampling strategy which means that potential participants have an equal or random chance of being invited to take part
• Pilot study - a small scale version of the larger planned study
• Descriptive statistics - measures of central tendency
• Inferential statistics - enable extrapolations to be drawn to the wider population
• Deductive reasoning - testing a theory or hypothesis
• Single blind study - when either the researcher or the participant does not know which intervention or treatment the participant has received
• Mode - the most commonly occurring score or case
• Double blind study - when the researcher and the participant do not know which intervention or treatment that the participant has received
• Bias - when the findings are distorted
• Control group - participants who receive the conventional (usual) or placebo intervention in a randomised controlled trial
• Generalizability - application of the findings to the wider population
• Median - the middle value when all the scores or cases are placed in order
• Placebo - a mock or dummy treatment