Year 10 Psychology - Week 8 Homework

Which of the following is an example of a primary data type?

• A meta-analysis of all of the research on a specific topic

• A report summarizing the findings of previous research

• A review article analyzing the results of multiple studies

• A dataset collected by a researcher through experiments or observations

Answer explanation

Primary data is collected through original research methods, such as experiments, surveys, or observations. Secondary data, on the other hand, is obtained from existing sources, such as published reports or datasets. The other options in this question refer to secondary data types.

Which of the following is an example of a qualitative data type?

• Height of students in a class

• Number of cars sold by a dealership

• Responses to an open-ended survey question

• Temperature readings in different cities

Answer explanation

Qualitative data refers to non-numerical data that is descriptive in nature. Open-ended survey questions elicit responses that are not numerical and are often descriptive, making them an example of qualitative data. The other options in this question are all examples of quantitative data, which refers to numerical data that can be measured and analyzed.

Which of the following is an example of a secondary data type?

• A survey conducted by a researcher to investigate a specific topic

• Data collected by a researcher through experiments or observations

• A report summarizing the findings of previous research

• A list of names and contact information of potential study participants

Answer explanation

Secondary data refers to data that has been collected and analyzed by someone else, such as reports, databases, or publicly available datasets. The other options in this question refer to primary data, which is data collected directly by the researcher conducting the study.

Which ethical consideration requires that participants understand their right to stop participating in a study at any time?

• Confidentiality

• Informed consent

• Debriefing

• Use of deception

Answer explanation

Informed consent is the ethical principle that requires that participants in a study be fully informed about the nature of the study, including any risks or benefits, and that they provide their voluntary consent to participate. This principle also requires that participants be informed of their right to withdraw from the study at any time without penalty.

Which sampling method involves dividing the population into subgroups and selecting participants from each subgroup in proportion to their representation in the population?

• Random sampling

• Convenience sampling

• Stratified sampling

• Cluster sampling

Answer explanation

Stratified sampling is a method of sampling where the population is divided into subgroups, or strata, based on some relevant characteristic (such as age, gender, or income level), and then participants are selected from each stratum in proportion to their representation in the population. This method ensures that each stratum is represented in the sample, which can improve the accuracy and representativeness of the sample.

Which of the following is an example of quantitative data?

• Descriptions of participants' experiences in a study

• Responses to open-ended survey questions

• Number of hours spent on social media per week

• Reasons why people choose to exercise

Answer explanation

Quantitative data refers to numerical data that can be measured and analyzed, such as the number of hours spent on social media per week. The other options in this question are examples of qualitative data, which is non-numerical data that is descriptive in nature.

Which ethical consideration ensures that participants can leave a study at any time without penalty?

• Right to withdraw

• Confidentiality

• Voluntary participation

• Debriefing

Answer explanation

The right to withdraw is an ethical consideration that ensures that participants in a study have the right to withdraw from the study at any time without penalty. This principle is an important aspect of informed consent, as participants should be fully informed of their rights before agreeing to participate in a study.

Which sampling method involves selecting participants based on their availability and willingness to participate?

• Random sampling

• Convenience sampling

• Stratified sampling

• Cluster sampling

Answer explanation

Convenience sampling is a method of sampling where participants are selected based on their availability and willingness to participate. This method is often used when it is difficult or impractical to select a random sample from the population. However, convenience samples may not be representative of the population and can introduce bias into the study.

In psychological research, the ___________ variable is the variable that is manipulated by the researcher, while the _________ variable is the variable that is measured and affected by changes in the independent variable.

• independent; dependent

• dependent; independent

• independent; extraneous

• extraneous; indepedent

Answer explanation

In psychological research, the independent variable is the variable that is manipulated by the researcher, while the dependent variable is the variable that is measured and affected by changes in the independent variable. For example, suppose a researcher wants to study the effect of caffeine on reaction time. In this case, the independent variable would be the amount of caffeine given to the participants, and the dependent variable would be the reaction time of the participants. The researcher would manipulate the amount of caffeine given to the participants (independent variable) and measure their reaction time (dependent variable) to assess the effect of caffeine on reaction time.

Which of the following is an example of a population in psychological research?

• The participants in a study

• All university students in Australia

• The sample used in a study

• The data collected in a study

Answer explanation

A population refers to the entire group of individuals or objects that a researcher is interested in studying. In psychological research, a population could be all university students in Australia, for example. The participants in a study and the sample used in a study are subsets of the population, while the data collected in a study is the information gathered from the sample.