thing Flashcards
What is qualitative data with examples?
data representing information and concepts that are NOT represented by numbers.
Qualitative data often involves methods such as interviews, focus groups, observations, or analysis of texts and documents.
One strength and one weakness of qualitative data
One strength of qualitative data is its ability to provide rich, detailed, and in-depth information about the research topic.
One weakness of qualitative data is that it can be time-consuming and resource intensive. Collecting and analysing qualitative data requires significant investment in terms of time, effort, and expertise.
What is quantitative data?
Quantitative data is data that is represented using numbers.
One strength and one weakness of quantitative data
One strength of quantitative data is its ability to provide precise and objective measurements. Quantitative data is based on numerical values and can be easily analysed using statistical techniques.
One weakness of quantitative data is its potential for oversimplification and lack of contextual understanding. Quantitative data focuses on numerical measurements, which may overlook the + of the research topic. It may fail to capture the subjective experiences, motivations, and nuances that qualitative methods can provide
What is Primary Research?
Primary Research involves the first-hand collection and analysis of data by researchers, rather than relying on existing data or sources. Primary research methods commonly include surveys, interviews, observations, experiments, or focus groups.
Give one strength and one weakness of Primary Research
One advantage of primary research is the opportunity to gather data that is tailored to the specific research needs and researcher bias can be controlled for. Researchers have control over the design and implementation of data collection methods, allowing them to obtain precise and targeted information.
One disadvantage of primary research is that it can be time-consuming and costly. Primary research often requires substantial resources in terms of time, effort, and budget. It involves various tasks such as: recruiting participants, conducting data collection and interpreting results.
What is Secondary Research?
Secondary research refers to the process of gathering and analysing existing data and information that has been previously collected by other researchers or organizations.
Give one strength and one weakness of Secondary Research
One advantage of secondary research is its cost-effectiveness and time-efficiency. Since the data already exists, researchers can save time and resources by accessing and analysing existing information.
One disadvantage of secondary research is the potential lack of control over the quality and reliability of the data. Researchers rely on the accuracy, validity, and completeness of the data collected by others, which may vary across different sources. The data may have been collected for different purposes or using different methodologies, making it challenging to ensure consistency or compatibility.
What is Internal validity?
Internal validity: Refers to the extent to which a study accurately measures the causal relationship between variables and minimizes confounding factors or alternative explanations within the research design.
What is external validity?
External validity: Refers to the generalizability of research findings beyond the specific context or sample used in the study e.g., to other populations, settings, or situations, and the real-world applicability and relevance of the research.
What is historical validity?
Historical validity: It involves assessing the extent to which the historical data used in the research is reliable, unbiased, and accurately reflects the past context or time period being investigated.
What is population validity?
Population validity: Refers to the degree to which the findings of a study can be generalized to the broader population from which the sample was drawn.
What is ecological validity?
Ecological validity: Refers to the extent to which the findings of a study can be generalized to the real-world or naturalistic settings.
What is face validity?
Face validity: Face validity is simply whether the test appears (at face value) to measure what it claims to. This is the least sophisticated measure of validity.
What is predictive validity?
Predictive validity This is the degree to which a test accurately predicts a criterion that will occur in the future.
What is Mundane Realism?
- Mundane realism - the extent to which an experimental situation resembles a real-life situation or event.
What is a Standardised procedure
- Standardised procedures – An experiment which follows a set procedure.
What are demand characteristics
- Demand characteristics – Parts of the study which could result in the participants being able to guess what the experiment is about and changing their behaviour to appear desirable rather than acting naturally.
What are participant variables
- Participant variables – Variables which may affect a study determined by the participant such as height, weight, intelligence, amount of sleep ect.
What are Operationalisations
- Operationalisation - Operationalization means turning abstract concepts into measurable observations. For example IV, and DV
What is meant by ‘researcher bias’
- Researcher bias - Researcher bias occurs when the researcher’s beliefs or expectations influence the research design or data collection process.
What is meant by ‘confounding variables’
- Confounding variables – Extraneous variables in the study which go on to impact the results as a result.
What is meant by ‘extraneous variables’
Variables in a study that are not being measured or manipulated by the researcher but affect the results (DV) of ALL participants’ behaviour equally.
What is meant by a ‘biased sample group’
Biased sample groups – The sample of an experiment not matching an overall population.
What is meant by a ‘Internal reliability’
Internal reliability is ensuring that you are measuring what you set out to measure for example: all the questions on a survey, test, or personality scale are measuring the same thing. For example, if designing a test on geometry, then all questions on the test should be about geometry.
What is meant by a ‘external reliability’
External reliability refers to the extent to which a measure varies from one use to another. E.G: Does tutoring improve just English scores or maths scores as well.
What are the three tests of reliability and how are they done?
- Split half method - The split-half method is a technique used to assess the internal consistency of a measurement scale or test. It involves splitting the items or questions of the scale into two halves and comparing the scores obtained from each half.
- Inter-rater - Inter-rater reliability refers to the consistency or agreement between two or more raters or observers when assessing or scoring the same set of data or stimuli.
- Test retest – Participants are tested. And then tested again some time later to see if the results are similar.
What factors effect reliability of research
- Standardised procedures
- Operationalising variables
- Inter-rater reliability
- Control of confounding & extraneous variables
What is online research?
Research that takes place over the internet such as an online questionnaire.
Give a strength and a weakness of Online Research
Strength: Allows greater population validity as anyone anywhere in the world can contribute to the research.
Weakness: The potential for sampling bias and lack of representativeness. Online research relies on self-selected participants who are willing to participate or have access to the internet, which may introduce sampling biases and limit the generalizability of the findings to the broader population.
What is Laboratory research?
Laboratory research – Research that happens in a controlled environment.
Give a strength and a weakness of Laboratory Research
Strength: Allows for greater control of extraneous variables as they will use a standardised procedure.
Weakness: Lab experiments often lack mundane realism as the procedure is often not something that would occur in day-to-day life.
What is Field research?
Field research – Research that happens in a naturalistic environment.
Give a strength and a weakness of Field Research
Strength - High external validity. Field experiments are conducted in real-world settings, such as natural environments, workplaces, or communities, allowing researchers to study phenomena in their natural context.
Weakness – Lack of control over extraneous variables such as environmental factors. Maybe the day is extremely windy or hot for instance.
What is a ‘pilot study’ and why is it used?
A pilot study in psychology is like a practice run or a small-scale version of a larger research project. It’s done to test out the methods and procedures that will be used in the main study.
Researchers conduct a pilot study to see if their ideas work, to identify any problems or flaws in their methods, and to make adjustments before they start their actual research. It helps them figure out if their study design is feasible and if they need to make any changes before diving into the full study.
Strength and Weakness of pilot studies in psychological research
One strength of pilot studies in psychology is that they allow researchers to identify and address potential issues or challenges before conducting the main study. By conducting a small-scale pilot study, researchers can test and refine their research design, procedures, and measures.
One weakness of pilot studies is that the small sample size used in these studies may limit the generalizability of the findings. Pilot studies typically involve a smaller number of participants compared to the main study. While this sample size is sufficient for the purpose of testing the research procedures, it may not accurately represent the target population of interest. Therefore, any conclusions drawn from the pilot study should be interpreted cautiously and may not be applicable to the larger population.
What are the British Pyschological Socienty (BPS) guidelines?
- Informed consent (knowing they are participating)
- Right to withdraw
- Deception
- Protection from harm (physical or psychological)
- Confidentiality (not publishing names of participants)
- Privacy
- Debrief (end of study)
- Working with animals
- Vulnerable participants
What is an ‘ethical comittee’
Ethics committees are normally found in Universities or any places that do research. Their role is to approve the design of research before the researcher completes the research, they are likely to use ethical guidelines
like those published by the BPS to assess if the research proposal is ethical or not.
If they don’t approve first time, they may ask the psychologist to make changes to their research design, or it may not allow them to conduct their research if their proposal has too many ethical issues. Ethics committees are normally made up of researchers and lay people
What are the three types of consent used to help nullify possible ethical issues?
Prior-general consent
Presumptive consent
Gatekeeper consent
What is presumptive consent?
Presumptive consent - Presumptive consent is a concept used in research ethics that allows for the inclusion of individuals in a study without obtaining explicit individual consent, based on the assumption that they would likely consent if they were given the opportunity. This is typically gathered by asking participants who are ‘similar’ (in age, sex location etc,) if they would be okay with participating and generalising that to the participants in the study.
What is Prior-general consent?
Prior general consent - “Prior general consent” refers to a form of consent obtained from individuals in advance, allowing their data to be used for future research purposes without requiring specific consent for each subsequent study. It is also known as “broad consent” or “blanket consent.”
What is Gatekeeper consent?
Gatekeeper consent - Gatekeeper consent refers to the process of obtaining permission or consent from a person or entity who has the authority over a particular group or population of individuals. In research, gatekeeper consent involves seeking permission from an individual or organization who acts as a gatekeeper to gain access to potential research participants.
What must be done if research is conducted on children (under 18?)
A parent or other legally appointed guardian must provide consent on behalf of the child to participate in research if they are aged under 18 years old.
What is meant by a ‘cost benefit analysis’ ?
Cost benefit analysis – Does the research have such good societal importance that its worth potentially compromising some ethical issues? These cost benefit analysis must be done to decide if the research is really worth doing in some cases.
What is a ‘sample’
Sample: subset of a population of interest that is selected for study with the aim of making inferences to the population.
What is a ‘target population’
Target population: the population that a study is intended to research and to which generalizations from samples are to be made. Also called reference population.
What are all the types of sampling techniques (7 types)
Random
Quota
Systematic
Stratified
Volunteer
Snowball
Opportunity
What is a ‘random sample’ and what is one strength and one weakness of this sampling technique?
Random - This method gives every member of the target group an equal chance of being selected for the sample.
Strengths: No bias as everyone has an equal chance of being selected.
Weaknesses: Must already have a list of target population and contact them individually which may take a lot of time. No guarantee they will want to participate either.
What is a ‘Quota’ and what is one strength and one weakness of this sampling technique?
Quota – Same as stratified as subgroups matched to target population. Only difference is participants from the subgroups are NOT randomly selected.
What is a ‘Systematic’ and what is one strength and one weakness of this sampling technique?
Systematic – a system is created to choose participants such as every 4th name on a register.
Strengths: Unbiased and objective way of selecting participants.
Weaknesses: Not truly random.
What is a ‘Stratified’ sampling and what is one strength and one weakness of this sampling technique?
Stratified – A sample of participants are randomly selected by identifying subgroups and matching them to the amount in a target population (for instance 50/50 men and women) then randomly choosing participants out of these subgroups to participate.
Strengths: Highly representative of overall population.
Weaknesses: Takes an extremely long period of time to set up all the subgroups ect.
What is a ‘volunteer sample’ and what is one strength and one weakness of this sampling technique?
Volunteer Sample – Participants volunteer to participate through usually seeing an advertisement.
Strengths: This often achieves a large sample size through reaching a wide audience, for example with online advertisements.
Weaknesses: Those who respond to the call for volunteers may all display similar characteristic.
What is a ‘snowball sample’ and what is one strength and one weakness of this sampling technique?
Snowball Sample – Participants recruit other participants to join the study.
Strength: Saves a lot of time as the researcher doesn’t have to gather as many participants himself.
Weakness: Not representative as it will favour social people with more friends.
What is a ‘opportunity sample’ and what is one strength and one weakness of this sampling technique?
Opportunity Sample – Selects people who are available at the time of the study.
Strength – Saves a lot of time as you can use the first suitable participants.
Weakness – Not representative as it favours people who have more time e.g. unemployed people.
What are independent groups, matched pairs and repeated measures examples of?
Experimental Designs
What is meant by a ‘Independent groups design’ and name one weakness of this design
- Independent groups – where each group only participates in one of the conditions. For example. In an experiment seeing if men or women are faster. Obviously, the men can only compete in the men’s category.
Doesn’t account for participant variables / differences as the participants only take place in one of the conditions.
What is meant by a ‘repeated measures design’ and name one weakness of this design
- Repeated measures where each group participates in both of the conditions. For example. Seeing if people run faster after a red bull or water. The group runs after water then the week after runs after red bull.
Doesn’t account for practise element. People might naturally do better on the 2nd condition as they have done the task once already.
What is meant by a ‘matched pairs design’ and name one weakness of this design
- Matched pairs are where participants are matched on characteristics that are believed to affect performance. For instance, height, weight, age, iq. Ect.
Can be EXTREMELY time consuming to find participants who fit all the necessary characteristics. And its impossible to match them fully due to participant variables such as amount of sleep.
What is one way to help negate the practise element of repeated measures?
Counterbalancing is when in a repeated measures we account for the practise element. There are two ways of dealing with this:
AB BA method involves having 2 groups who participate in both conditions. One starting in condition A first and B second. And the other group starting with B and doing A after.
ABBA involves one group, but each participant takes part in the same condition twice.