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Hayley L.

A quasi-independent variable is the same as

The solution to experimenter bias is to use a(n) ____________ design.

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Suppose that on average, you tend to score about 83% on exams in your courses. Scoring a 95% on the first exam in a course and 84% on the second exam in that course is an example of

Suppose that a participant completes a task in a research study faster than he or she would have completed the task outside the study (i.e., in their natural surroundings). This would be an example of

**the Hawthorne effect.**

Getting better on a task in a study with practice can cause a source of bias called

Time measured in minutes is an example of a(n) _______________ scale.

An independent variable that includes three different types of treatments is called a(n) ___________ variable.

Temperature measured in Fahrenheit or Celsius is an example of a(n) _________ measurement scale.

Independent variables can be manipulated according to

People in a grocery store are asked to sample three types of energy drinks and then indicate which one they liked best and which they liked least (i.e., they rank ordered the drinks). The dependent variable in this study is measured on a __________ scale.

The difference between nominal and ordinal measurement scales is that

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Confounding variables primarily threaten the __________ of a study.

Testing effects are particularly problematic for ___________________ designs.

Having different participants in a study experience conditions in different orders is called

**counterbalancing.**

Measuring intelligence using the score on an IQ test is an example of

**an operational definition.**

When different observers of behavior record the behavior in a similar way, the measure is said to have good** **

Which of the following describes a quota sample?** **

Match the correct sampling technique with the example _________: individuals are selected from a participant pool made up of students at a university who volunteer for the study?

True or False: Internet samples are typically less representative of the population of interest than samples that are collected fact-to-face

Match the correct sampling technique with the example _________: volunteers are selected from students such that the proportion of students in each age range in the sample matches the proportion in the population?

**Quota sample**

Which of the following sampling techniques is likely to create the largest amount of sampling error?

Which of the following sampling techniques involves choosing individuals from the population at random where each individual has an equal chance of being selected?

**Simple random sample**

Match the correct sampling technique with the example _________: students are selected at random from lists of students at a university organized by class level such that the proportion of individuals at each class level in the population of students matches the proportion selected for the sample?

Which of the following describes a cluster sample?** **

The _________ is the group of individuals a researcher wants to learn about in a study, whereas the _______ is the groups of individuals tested in a study.

Match the correct sampling technique with the example _________: individuals are selected at random from a list of phone numbers to be called for a survey?

Which of the following sampling techniques is likely to create the smallest amount of sampling error?

**Simple random sample**

Match the correct sampling technique with the example _________: individuals are selected at random for a study from a list of members of Girl Scout troops to represent the population of girls aged 8-13?

Experiment to test the hypothesis that exercise affects memory in elderly. Participants aged 60+ who responded to an ad in the local newspaper were recruited. Participants were presented with the same study list. Half the participants were asked to walk on a treadmill for 20 min, the other half were asked to complete Sudoku puzzles. All participants were given a recognition test for the items in the study list. The treadmill exercise group scored lower on the test than the Sudoku group. What is the population for this study?

True or False: All studies, regardless of sampling technique are subject to sampling error.

The difference in scores that occurs when we test a sample drawn out of the population is

Which of the following sampling techniques involves choosing individuals from the population such that individuals from the population who volunteer are selected?

In a Latin Square, the number of orders used is equal to the number of _________ in the experiment.

**Conditions**

Which of the following represents an experiment?

True or False: Experiments are the best research design for answering causal research questions.

True or False: All experiments contain at least one independent variable.

A main effect compares means for

_________ can be used to counter group differences.

True or False: An interaction effect can be tested in all experiments.

Order effects are particularly problematic for __________ designs, but group differences are a problematic in __________ designs.

At minimum, how many independent variables must be included in a study in order for it to be classified as an experiment?

_________ can be used to counter order effects.

For the table of condition means below, which effects appear to be present? IV A Level 1 IV A Level 2 IV B Level 1 50 50 IV B Level 2 75 75

**main effect of IV B only.**

In a graph of condition means from an experiment, the ________ variable should be plotted on the x-axis, whereas the _________ variable should be plotted on the y-axis.

When the effect of one independent variable depends on the levels of another independent variable, this is called a(n)

A(n) _______ test is often used to analyze data in a factorial design.

In a factorial design, there is/are at least ______ independent variable(s).

A main effect compares means for

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