Research Methods 1-6 - Research Methods 7-12

31 important questions on Research Methods 1-6 - Research Methods 7-12

When we conduct psychological research, our goal is to understand some phenomenon as it is experienced by a ______ of interest

Population

What is a sample?

A small number of people from the population who will participate in a study and be used to make a reasonable inference to the population

What is the characteristic of non-probability sampling techniques?

Probability of selecting a given individual is unknown
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Cons of non-probability sampling techniques

Vulnerable to selection bias that can affect the degree to which a sample is representative to a population

Pros and cons of Convenient Sampling

Consists of individuals who are convenient/easy to recruit

Without careful controls, convenient sampling may be biased in some way


Example:
  • 1st Year REP – Recruit 1st Year students
  • Schizophrenia – Recruit participants through hospitals, support services etc.

Can quotas control all of the sampling bais? If no, what should we do?

No - Researchers should make the best sampling decision that they can and be transparent in their decisions in their reporting

Why are ethics important in psychological research?

Ensure the Welfare + Dignity of participants & to ensure that the reporting of psychological research is accurate + honest

The process of conducting psychological research in Australia is governed by the recommendations of the ______________.

National Health and Medical Research Council (NHMRC)

What are the core principles?

  1. Research Merit and Integrity
  2. Justice
  3. Beneficence
  4. Respect

What is Merit in psychological research?

  • Research that has merit is research that is justified by its potential benefit to humanity
  • Scientifically sound in terms of design & methodology, such that it is likely to achieve its aims

How to ensure that a study has merit?

Perform initial review of relevant literature to ensure that a study is likely to have merit

What is integrity in psychological research?

  • Well-founded principles of research conduct
  • Report findings honestly and transparently

What is Justice in psychological research?

  • Ensure that the inclusion & exclusion of participants are fair and equitable
  • No unfair burden placed upon any participant group/participants are not exploited in any way

What is Beneficence in psychological research?

  • Consider risks & benefits
  • Research should involve likely benefits to either participants/community that would justify any discomfort/risks to participants
  • Potential risk associated with participation in research are minimised and controlled
  • Researchers should highlight clearly to participants the risks & benefits associated prior to their involvement to help participants decide if they want to participate in the study

What is Respect in psychological research?

  • Holding regard for the value of research participants and their culture, beliefs and welfare
  • Respect the privacy and confidentiality of participants
  • Empower people to make decisions about the participation and data they contribute to the research study

To ensure that a study is ethical, researchers submit a ______ to an ethics advisory group/committee, who will _______ the project

research proposal; approve or disprove

What is included in the research proposal?


  • Background info of the project in terms of literature

  • Detailed account of research methodology

  • A description of how potential risks will be managed

  • A copy of all of the measures that will be used

  • A clear explanation of what participants will be asked to do and how they will be supported

What documents will participants be given?

Plain language statement, a consent form and a debriefing statement

To measure psychological phenomena as precisely and unambiguously as possible, use ________

Numerical scales of measurement

How can we represent a frequency distribution?

  • Frequency histogram
  • Frequency table
  • Boxplot

What is Central Tendency

It is what is the most representative in a distribution

What is the mean and with what kinds of distributions do we use it?

  • Sum the data and divide the sum by the number of scores
  • Use with interval and ratio data & normal distributions

What is the median and with what kinds of distributions do we use it?

Middle score – Rearrange data in order, it works on ranked ordering

Not vulnerable to outliers

Use when data is skewed or has outliers & with ordinal scales of measurement

What is the mode and with what kinds of distibutions do we use it?

Highest frequency

Use with discrete data & nominal scales of measurement

What is a low variability? Is it a good or bad representation of what is typical?

Scores in a distribution are tightly packed/grouped around the mean.

  • Good representation 

What is a high variability?

Scores in a distribution are far from the mean (in terms of distance)

  • Bad representation of what is typical

How to calculate standard deviation?

  • Sum of squares

  • Variance

  • Standard Deviation

Characteristics of a deductive argument - What do they start and end with?

  • They start with a broad premise
  • Provide support for reaching a very specific conclusion

When is a deductive argument used for?

Commonly used to derive a suitable hypothesis to test a theory

Characteristics of an inductive argument

Premises do not provide absolute support, but probabilistic support for its conclusion

What kinds of inductive arguments are there?

Strong and weak

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