Quiz
Psychological Statistics
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Questions in this quiz (12)
1A researcher is interested in the eating behaviour of 5 year olds and selects a group to be tested in a research study. The group of 25 five year olds is a:
- ASample
- BStatistic
- CPopulation
- DParameter
2A researcher is curious about the average IQ of registered voters in the state of Florida. The entire group of registered voters in Florida is an example of a:
- ASample
- BStatistic
- CPopulation
- DParameter
3Although research questions typically concern a ______ research study typically examines a ______.
- ASample, population
- BStatistic, sample
- CPopulation, sample
- DParameter, Population
4Statistical methods that use samples to answer general questions bout a population are called _______.
- AParameters
- BStatistics
- CDescriptive statistics
- DInferential statistics
5Statistical techniques that summarise, organise and simplify data are classified as ________.
- APopulation statistics
- BSample statistics
- CDescriptive statistics
- DInferential statistics
6In an experiment, the researcher manipulates the _______ variable and measures changes in the ________ variable.
- APopulation, sample
- BSample, population
- CIndependent, dependent
- DDependent, independent
7A researcher observed that preschool children playing in a red room showed more aggression than playing in a blue room. For this study, what is the independent variable?
- APreschool children
- BColour of the room
- CAmount of aggression
- DThe children's play
8In a study evaluating the effectiveness of a new medication designed to control high blood pressure, one sample of individuals is given the medicine and a second sample is given an inactive placebo. Blood pressure is measured for each individual. For this study, what is the dependent variable?
- AThe medication
- BThe placebo
- CBlood pressure
- DThe individuals given the medication
9A hypothesis test is ______.
- AA descriptive technique that allows researchers to describe a sample
- BA descriptive technique that allows researchers to describe a population
- CAn inferential technique that uses the data from a sample to draw inferences about a population
- DAn inferential technique that uses information about a population to make predictions about a sample
10The null hypothesis _______.
- AStates that the treatment has no effect
- BIs denoted by the symbol H1
- CIs always stated in terms of sample statistics
- DAll of the choices are correct
11The null hypothesis ______.
- AConcerns a population with an unknown mean
- BIs denoted by the symbol H0
- CGenerally states that there is no effect, no change or no difference
- DAll of the other choices are correct
12The final step of hypothesis testing is to ______.
- ALocate the values associated with the critical region
- BMake a statistical decision about H0
- CCollect the sample data and compute the test statistic
- DState the hypotheses and select an alpha level
Information
- Description
- Quiz on Psychological Statistics, created by Charlotte Joseph on 17/03/2014.
- Author
- Charlotte Joseph
- Language
- English
- Views
- 3,142
- History
- Created on 17 Mar 2014 · updated on 17 Jan 2017
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