WorksheetsVCE Psychology Key Science Skills
Total questions: 20
Worksheet time: 10mins
Which of the following would qualify as a within subjects design?
Measuring amount of sleep pregnant mothers get before having a baby, and again, after they give birth
Testing participants' IQ and levels of creativity in order to determine if there is a relationship between the two
Measuring height of participants at the beginning of a study, then again after 10 years in order to determine average growth of adults per year
Analysing the beliefs of individuals from Western and Eastern cultures by conducting a qualitative interview with one sample from each culture
Allocation involves
Allocating a group of individuals to represent the population
Selecting people from the population in a way that ensures that its strata (subgroups) are proportionally represented in the sample
Assigning participants to experimental conditions
Allocating the investigation methodology that will be used for the study
Which of the following is NOT true about ethics in research?
The no-harm principles suggests that any unnecessary harm to participants should be avoided
Ethical guidelines are broad moral principles that inform ethical concepts in research
Participants are able to withdraw from the research at any point in the study, this includes their data also being removed
The use of deception is permissible when participants knowledge of the true purpose of the study may affect their behaviours while participating
Which of the following statements regarding external validity is the most accurate?
External validity is only considered when internal validity is achieved
External validity is the extent to which an investigation truly measures what it claims to
External validity is the extent to which the results of an experiment can be applied to different individuals in different settings
External validity can be improved by using a stricter inclusion criteria
If a researcher wanted to report on the extent to which the participant's results differed from one another, what statistic would be most appropriate?
The mean
A bar chart
The outliers
Standard deviation
Operationalising variables for an experiment involves
Strictly controlling all variables that can impact on the dependent variable
Deciding on the importance of all the experimental variables
Identifying all potential extraneous variables before the experiment is conducted
Defining how the independent and dependent variables will be measured or manipulated
A researcher gives vitamin C to one group of research participants and a placebo to another group to measure the effect of vitamin C on the common cold. The frequency of colds is
The independent variable
The dependent variable
An extraneous variable
A confounding variable
Which of the following is most affected by extreme scores?
Mean
Median
Mode
Variability
The term___________ is used to describe how closely a set of measurement values agree with one another
accuracy
precision
repeatability
reproducibility
A researcher intentionally arranged the order in which conditions of a within-subjects experiment were experienced. This was done to control a practice effect that was epected to occur. This procedure is commonly called...
manipulation
control
counter-balancing
experimenter bias
Which of the following statements about measurement errors is correct?
Random errors are predictable and therefore controllable
Systematic errors occur by chance and are therefore unpredictable
Systematic errors affect all measurements to the same degree
Random errors are faults entirely sourced with the researcher
When drawing a line graph for the results of an experiment
the DV is represented on the horizontal axis, whereas the IV is represented on the vertical axis
The IV is represented on the horizontal axis whereas the DV is represented on the vertical axis
A line of best fit can be used to illustrate the underlying relationship between the IV and the DV
A trend line must always show a causal relationship between the independent and dependent variables
Generalising from results of research means
Overstating the true meaning of the results
Determining the reliabiltiy and validity of the results
Applying the results to the sampled population
Drawing a conclusion about whether the results support the hypothesis
Which of the following is an example of a self-report?
Journal notes kept by a person of research interest with a phobia
The researcher's raw data collected for their study
The researcher's formal report on their study
The researcher's records in an observation checklist
If research procedures are standardised, then
the results will be valid
the research will be conducted ethically
all participants will understand what the experiment is requiring of them
the procedures used in a specific condition will be the same for all participants
A researcher uses test scores as a measure of the dependent variable. The test scores are best described as _________ and _________ data.
primary and quantitative
primary and subjective
secondary and qualitative
primary and qualitative
An experrimenter collected data on memory from 10 participants. The data were scores on a test of the number of items on a list of 10 words that could be remembered one month after learning the words. The data is: 1, 4, 7, 5, 7, 2, 3, 7, 1, 3.
What is the median for the scores?
4
3
3.5
3.8
Which scatter plot shows the strongest negative correlation?
A
B
C
D
A measurement tool that consistently predicts intelligence amongst children, adolescents and adults is likely to have
high repeatability
high reproducibility
high validity
high precision
Results of research into screen usage and exercise show that overall, as people spend more time on screens, the lower their motivation to exercise. Which of the bar charts depict this?
