Exam 7: Examining Differences Between Means: The T-Test

"The mistaken belief that a statistically significant result in a psychological study constitutes a psychologically significant finding".What fallacy is this a glossary definition of?

Which of the following statements is true?

Researchers used content analysis of over 200,000 Twitter posts ('tweets')to examine responses to the change of government after an election.They found that 67% of the tweets in the first hour were positive, but they became progressively more negative over time.Which of the following statements is true?

"Comparisons between cells that a researcher has planned to perform prior to a study being conducted.These constitute a subset of all possible comparisons and have usually been identified as important on the basis of a particular theory." What is this a glossary definition of?

A behavioural neuroscientist wishes to study the potential of a new technology for restoring vision in people with damage to a specific region of the brain.Neuropsychologists have already done work with humans who have damage to that region and their results are encouraging but the number of people available for testing is too small to make definitive conclusions.The researcher proposes testing the effect of the technology on monkeys.In order to do that test she has to damage part of the brain of the monkeys and then check if the technology restores vision.Which of the following statements is true?

"A pattern of two-way interaction, in which, when a line graph is drawn, the lines connecting the means for different levels of the same factor cross over each other.This pattern indicates that at one level of one of the factors (A)the mean is higher for one level of the other factor (X will be greater than Y ), but that at another level (B)this pattern is reversed (Y will be greater than X)." What is this a glossary definition of?

Which of the following features does not routinely distinguish between quantitative (and classical qualitative)methods and classical qualitative methods.

An educational psychologist administered a number of ability measures to 120 14-year olds.The measures included an IQ test, and tests of mathematics, spelling, and general verbal ability as well as a test of the amount of time it took the students to learn material from the new curriculum.The correlation table is shown below: Based on the output which of the following statements is false?

Which of the following statements is false?

To the extent that qualitative methods serve to emphasize the subjective, human aspects of the research process, which of the following statements is true?

"The process of engaging closely with a data set over a period of time, so as to become highly familiar with its form, structure and content".What research practice is this a glossary definition of?

What does the search for themes in thematic analysis involve?

"Doubt about the applicability of research findings arising from features of the research procedure.Generally speaking, this uncertainty is difficult to quantify but it can be minimized by appropriate research practice." What is this a glossary definition of?

What is the basis of Braun and Clarke's objections to the way most researchers do research using grounded theory?

"The hypothesis that the research reveals no effect (e.g.that two samples are drawn from the same population and that there is no informative difference between their means).Also referred to as H₀.This is the hypothesis that statistical procedures allow researchers to reject." What type of hypothesis is this a glossary definition of?

"A feature of the research process that reflects the fact that attempts to discover the meaning of phenomena for participants is necessarily bound up with the meaning that they have for researchers." What reearch feature is this a glossary definition of?

A personality researcher revisits the hypothesis that frustration leads to regression.She collects data from 49 female Internet users measuring their sense of personal frustration and their self-ratings of aggression.A scatterplot is shown below. Which of the following statements is true?

"A method for summarizing aspects of participants' personal constructs.The core feature of this is that it identifies similarities and differences among elements that are judged with reference to dimensions (constructs)generated by the participant.

A psychology professor has set a test for 50 students with each question passed scored as 1 and each question failed scored as 0 from a total of 100 questions.One week later the professor then asked the students to write down all the things they had passed that they could remember.These were scored as correctly remembered or incorrectly remembered by coders who were blind to the experimental conditions.He then conducts a within-samples t-test to compare the number passed with the number remembered and provides the SPSS output below. Which of the following statements is true?

"Statistics that involve procedures that are relatively free of restrictive assumptions about the shape of the distribution of the population that a sample is drawn from." What construct is this a glossary definition of?