1/112
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
Abstract
Summary of the entire investigation
Should be written last
Includes: aim
Hypothesis
Type of design
Variables
No of participants and sampling method
Results
Conclusion
Introduction
Sets the scene
Puts the aim and hypothesis of the investigation into context
Method
Chronological order of how u conducted your study
Results
A summarised account of the data collecting using descriptive statistics and graphs
Discussion
Outline a conclusion by explaining your results
Evaluating your study
Referencing
Last name , first initial . (Year) Title/ Name Of Book . Publisher , (issue number) , page number
Peer review
Sent of to other psychologist experts who either accept reject or suggest it should be made better
Institution bias research from prestigious university’s are looked upon more favourably
Experiment vs correlation
How the IV affects the DV (how salt vs sugar affects memory) vs if one factor affects another (the older we are the slower our reactions)
Strengths of correlations (2)
-easy to identify relationship between co variables (scatter graph)
-can study varaibles that would be unethical to test experimentally
Weaknesses of correlations (3)
-cannot determine cause and effect
-could be misinterpreted
-could be a third variable
No correlation
No relationship between the variables
Correlation coefficient
A number between -1 and +1 that tells us how strong the relationship is
+1.0 perfect positive
0 no correlation
-1.0 perfect negative
Historical/ temporal validity
Whether findings will still be valid over time
Face validity
Does something look like it will measure what it is supposed to measure
Ecological validity
Whether the study reflects real life situations
Population validity
Whether the sample is representative of the wider target population
Concurrent validity
The amount of agreement between two different tests
One test is new and the other is well established
If the participants scored similarly in both tests this meant it had high concurrent validity
External validity
Will the findings generalise to other populations locations or times and still hold true
Internal reliability
Whether a measure has consistency with itself
External reliability
The consistency of two or more sets of results with the same measuring device
Inter-rater reliability
Two or more researchers have a high agreement on a measure
Reasearchers would compare results and check they matched by using correlation
Test-retest reliability
Testing participants more than once
One person should get the same or similar scores on the same test but at separate occasions
Confidentiality
Keeping data private
Keep files in a safe place
Deception
Tell all information do not leave anything out
Thorough debrief, counselling sessions
Competence
Having the knowledge and skills to perform the work of a psychologist
Studying pyschology to have these skills
Debrief
Full explanation of aims and consequences
Writing a report
Withdrawal
The right to leave the study
Protection from psychological and physical harm
Participants must leave in the same state they joined
Counselling
Informed consent
Tell the participants what’s included in the study
Privacy
Make sure the client is in control and participants do not have to answer if they do not want to
Can Do Can’t Do With Participants In Pyschology
Confidentiality
Deception
Competence
Debrief
Withdrawal
Protection from psychological and physical harm
Informed consent
Privacy
Pilot study
Initial run through of the procedures to be used in an investigation
Selecting a few people and trying the study on them
Purpose of a pilot study
-saves time and money by identifying flaws in the procedure
Extraneous variables
Other variables that are not the IV that could affect the DV
Could affect validity
Counterbalancing
One group does condition A then B and the other group does condition B then A
Target population
The set of people researchers want to find out about
Sample
A small set of people taken from the target population
Random sampling
Names in a hat, everyone has an equal chance of getting picked
Systematic sampling
Every fourth person from a list
Opportunity sampling strengths
anyone available at the time
-easy and less time consuming
-collects participants with similar characterisitics
Opportunity sampling weaknesses (2)
-higher chance of researcher bias
-could not be representitive
Self selected sampling strengths (3)
-reaches a large variety
-easy
-participants will remain commited
Self selected sampling weaknesses (3)
-might not get relevant people
-volunteer bias
-may not be enough interest
Systematic sampling strengths (3)
-more generalisable
-unbiased -increases validity
-likely to gain a varied sample -representative
Systematic sample weaknesses (2)
-difficult to carry out -time consuming
-could accidentally create a biased sample
Random sampling strengths (2)
-reduces researcher bias
-representative
Random sampling weaknesses (2)
-time Consuming
-lacks generalisation
Stratified sampling
Sampler groups target group into sections based on a key characteristic that should be shown in the final sample (different classes)
Stratified sampling strengths (1)
-if list order is randomised -unbiased
Stratified sampling weaknesses (2)
-time consuming
-difficult as sub groups must be known
Representative
How well a sample reflects the target population
Population validity
Being able to generalise results from our sample to the target population and still hold true
Aim
What you aim to find out for example: if chewing gum affects memory
Non-directional hypothesis
Predicting that there will be an effect but not the direction of the effect (positive/negative)
Directional hypothesis
Predicting the direction of the effect (positive/negative)
Null hypothesis
Predicts no effect
Things to include in a hypothesis
-IV and how it is manipulated
-DV and how it is measured
-directional or non-directional prediction of result
Strengths of questionnaires (3)
-no Immediate judgement
-easy to administer (email)
-quantitive can be easy to analyse
Weaknesses of questionnaires (3)
-response bias could say same thing for each question
-people could leave open questions blank or provide little detail
-cannot follow up
Closed questions
Only provide quantitative data
Response could lack detail
Likert scale
How much u agree with the question
Rating scale
Rating in a numerical scale
Double barrelled question
Includes more than one topic but only allows a single answer
Structured interview
Only asks predetermined questions
Semi structured
Some are pre planned and others are created in the interview
Unstructured interview
Topic is planned but no questions for discussion
Behavioural categories
Clearly defined behaviours are identified which can be observed and recorded
Placed on a checklist and talied every time the behaviour occurs (eating, talking, laughing)
Event sampling
Behaviours are tallied as they occur for a set amount of time (for 30 minutes)
Event sampling strengths (2)
-seeing more behaviour over a longer period of time
-more accurate reflection of events
Event sampling weaknesses (2)
-time consuming
-behaviours could be missed -reduces validity
Time sampling
Observing and recording behaviour at specific time intervals (every 5 minutes for 30 seconds)
Time sampling strengths (2)
-less likely to miss behaviours
-understanding how long a behaviour occurs for or how behaviours change over a period of time
Time sampling weaknesses (2)
-could miss important behaviours
-reduces detail
Covert
Do not know they are being observed
Covert strengths (2)
-natural behaviour so access to sensitive behaviours
-no demand characteristics
Covert weaknesses (3)
-ethical issues -no consent
-cannot follow up
-could lead to distrust if they discover they are being watched
Overt
Participant knows they are being watched
Overt strengths (2)
-ethical transparency
-can interact more easily so ease of data collection
Overt weaknesses (3)
-could show demand characteristics
-lack of natural behaviour
-limited access to sensitive behaviour
Naturalistic
In natural environment
Naturalistic strengths (2)
-high ecological validity
-unbiased behaviour
Naturalistic weaknesses (2)
-low reliability (harder to replicate)
-lack of control over extraneous variables
Controlled
controlled by the researcher but with no IV
Controlled strengths (3)
-higher reliability (easier to replicate)
-controlled extraneous variables
-researchers can focus on behaviours of interest without distraction
Controlled weaknesses (3)
-demand characteristics
-not their natural behaviour
-low ecological value so behaviour cannot be applied to everyday experience
Participant
Researcher is involved
Participant strengths (2)
-builds trust and creates a relationship
-gains a deeper understanding of behaviours and interactions
Participant weaknesses (3)
-ethical issues
-hard balancing roles of participant and observer
-could feel behaviour on a personal level
Non-participant
Researcher remains separate
Non-participant strengths (3)
-no distractions so easier data recording
-remains a degree of detachment so reduces bias
-access to larger groups to generalise findings
Non-participant weaknesses (1)
-limited depth of understanding so potential for misinterpretation
Repeated measures design
The same participants participate in both conditions
Repeated measures strengths (2)
-individual differences do not distort effects of the IV on the DV
-counterbalancing reduces order effects
Repeated measures weaknesses (2)
-order effects (practice, fatigue)
-seeing the experimental task more than once means more likely to guess aim
Independent measures
One group of participants participate in 1 condition and the other group participates in the other condition
Independent measures strengths (2)
-no practice effects
-less likely to guess aim and change behaviour
Independent measures weaknesses (2)
-individual differences -extraneous variable
-more participants needed
Matched pairs
One group of people take part in one condition and another group of people who are matched with a certain characteristic of someone in the first group take part in the second condition
Matched pairs strengths (3)
-no order effects
-cannot guess aims as only seen once
-effects of individual characteristics are highly controlled