Methods & Ethics Paper 3 Flashcards
Q1 tip
Try and use one fact from the stimulus material in each of your answers for a, b and c
Q2 ethical considerations response
- how the ethical consideration was performed
- why that ethical consideration is important
x3 (positive) - how the ethical consideration was breached
- how that ethical consideration could instead be applied
- why that ethical consideration is important
x3 (negative)
Q1(c) tip
- make rationale additive to primary research method as a follow-up
- additional research method could be used to study the same topic as the original experiment
- make sure the rationale is relevant and explained
Q3 tip
- a lot of the information overlaps
- includes references to stimulus
- describes strengths & limitations of research approach of stimulus material
Snowball sampling
2 characteristics Q1(b)
Pros & Cons Q3
- participants recruit other potential participants for the study
- non-probability sampling technique as the participants are not chosen randomly from target population thus not statistically representative of the entire population
- useful for studying hidden, hard-to-reach, or rare populations
Pros: quick, easy, practical, time-efficient, cost-efficient, important for sensitive topic areas
Cons: selection bias, not representative of target population, limited generalizability, lack population validity
Random sampling
2 characteristics Q1(b)
Pros & Cons Q3
- everybody has equal chance of being selected (this eliminates bias)
- members are selected randomly (proper representation of population)
Pros: no selection bias, high generalizability
Cons: time consuming, expensive
Volunteer sampling
2 characteristics Q1(b)
Pros & Cons Q3
- participants voluntarily offering to participate
- non-probability sampling technique as the participants are not chosen randomly from target population thus not statistically representative of the entire population
- gather data from individuals motivated to be in the study
- not generalisable
Pros: Motivated participants, easy, cost-efficient
Cons: selection bias, not representative of target population, limited generalizability, lack population validity
Purposive sampling
2 characteristics Q1(b)
Pros & Cons Q3
- Participants selected based on specific criteria relevant to the research objectives
- intentionally select participants who provide valuable data related to study
- non-probability sampling technique as the participants are not chosen randomly from target population thus not statistically representative of the entire population
- used when researchers already intend to study a specific characteristic
Pros: relatively high generalizability for the target population which possesses the salient characteristics of sample, easy, flexible to increase participant size during research if needed
Cons: reduced transferability to members without salient characteristics of sample, susceptible to bias as participants are selected based on characteristics the researcher personally judges to be salient
Opportunity/convenience sampling
2 characteristics Q1(b)
Pros & Cons Q3
- participants selected on availability
- unlikely to be representative of population which produces biases of only those being able to participate are studied
- non-probability sampling technique as the participants are not chosen randomly from target population thus not statistically representative of the entire population
Pros: quick, easy, practical, time-efficient, cost-efficient
Cons: selection bias, not representative of target population, limited generalizability, lack population validity
True experiments
2 characteristics Q1(a)
Pros & Cons Q1(c) / Q3
- designed to test a hypothesis (and null hypothesis) that predicts casual relationship between IV and DV
- independent variable (condition variable) & dependent variable (measured variable: behaviour)
Pros: easy to analyse data, isolate a cause-effect relationship, objectivity, replicability
Cons: reductionist, low ecological validity, simplified model of psychological interaction, participant/researcher bias
Field Experiments
2 characteristics Q1(a)
Pros & Cons Q1(c) / Q3
- conducted in real-world, natural settings
- researcher manipulates and controls the independent variable(s), while measuring the effects on the dependent variable(s).
Pros: easy to analyse data, high ecological validity, generalizability
Cons: reductionist, simplification, less researcher control over variables (confounding variables, maybe IV) & less certainty of causality, participant/researcher bias, hard to replicate
Quasi-experiments
2 characteristics Q1(a)
Pros & Cons Q1(c) / Q3
- participants are in pre-existing groups/conditions in real-life, based on a characteristic of interest, which forms the IV
- designed to test a hypothesis (and null hypothesis) that predicts casual relationship between IV and DV
Pros: easy to analyse data, isolate a cause-effect relationship, objectivity, replicability
Cons: reductionist findings, simplifications, low ecological validity, simplified model of psychological interaction, participant/researcher bias
Natural experiments
2 characteristics Q1(a)
Pros & Cons Q1(c) / Q3
- Researchers identify naturally occurring variables, of a real-life phenomenon, and analyse them by measuring the IV and its effect on DV in the real-world context, in the participant’s natural environment
Participants’ behaviour (DV) is measured in a real-world environment - Limited control over confounding variables, and IV as the IV is naturally occurring and non manipulated
Pros: less participant bias, high ecological validity, generalizability, easy to analyse
Cons: reductionist, simplification, less researcher control over variables (confounding variables, maybe IV) & less certainty of causality, researcher bias
Correlational study
2 characteristics Q1(a)
Pros & Cons Q1(c) / Q3
- trying to identify a relationship or pattern between 2 variables of probably naturally occurring phenomenon as well as the strength of the relationship
- researchers observe and measure variables as they naturally occur
(non-experimental, quantitative)
Pros: easy to analyse, large quantity of data in short amount of time, inexpensive
Cons: researcher bias, causation vs correlation difficult (further studied with experiments)
Questionnaires
2 characteristics Q1(a)
Pros & Cons Q1(c) / Q3
- collecting large amounts of data inexpensively and directly from participants by asking them to fill out questionnaire
- trying to identify relationship or pattern through close-ended questions
(non-experimental, quantitative survey)
Pros: easy to analyse, large quantity of data in short amount of time, inexpensive
Cons: researcher bias, causation vs correlation difficult (further studied with experiments)