A researcher that fails to report nonstatistical findings, whether to deliberately hide results or the publisher not publishing the article, is an ethical dilemma known as ______.
Answer
Correct Answer:
File drawer problem
Note: This Question is unanswered, help us to find answer for this one
Which of the following is a sample statistic that is used to estimate a population parameter?
Answer
Correct Answer:
Point estimate
Note: This Question is unanswered, help us to find answer for this one
Often reported with both parametric and nonparametric tests for significance, ______ can describe the proportion of variance in a dependent variable that can be explained by the levels of a factor.
Answer
Correct Answer:
Effect size
Note: This Question is unanswered, help us to find answer for this one
A researcher needs to analyze one categorical factor for the extent to which frequencies observed fit well with the expected frequencies. The researcher should use ______.
Answer
Correct Answer:
Chi-square goodness-of-fit
Note: This Question is unanswered, help us to find answer for this one
Which type of test is used to test significance in hypotheses tests with nominal or ordinal scales of measurement?
Answer
Correct Answer:
Nonparametric
Note: This Question is unanswered, help us to find answer for this one
Pearson correlation coefficient parametric test for correlation is used for ______ levels of measurement.
Answer
Correct Answer:
Interval or ratio
Note: This Question is unanswered, help us to find answer for this one
A source of variation associated with how the effects of one factor are influenced by the levels of a second factor is ______.
Answer
Correct Answer:
Interaction
Note: This Question is unanswered, help us to find answer for this one
What is the power of the decision-making process?
Answer
Correct Answer:
The probability of correctly rejecting a false null hypothesis
Note: This Question is unanswered, help us to find answer for this one
A significant ______ indicates that group means significantly vary across the levels of one factor, ______ of the second factor.
Answer
Correct Answer:
Main effect; independent
Note: This Question is unanswered, help us to find answer for this one
If a researcher retains the null hypothesis that is actually false, they have performed a ______.
Answer
Correct Answer:
Type II error
Note: This Question is unanswered, help us to find answer for this one
A researcher sets a null hypothesis and runs a test statistic to see if the null hypothesis is true. The criterion is set at .05, and the results show that the tested p value is .021. What can the researcher conclude about their null hypothesis?
Answer
Correct Answer:
The researcher can reject the null hypothesis and state the effect reached is significant.
Note: This Question is unanswered, help us to find answer for this one
If a researcher implements a new teaching strategy that is hypothesized to increase learning retention and tests scores, which of the following would be the correct null hypothesis?
Answer
Correct Answer:
The new teaching strategy will lower learning retention and tests scores.
Note: This Question is unanswered, help us to find answer for this one
Inferential statistics uses data taken from ______ to make generalizable observations to ______.
Answer
Correct Answer:
A sample; a larger population
Note: This Question is unanswered, help us to find answer for this one
Type II error is _____ finding.
Answer
Correct Answer:
False negative
Note: This Question is unanswered, help us to find answer for this one
Type I error is _____ finding.
Answer
Correct Answer:
False positive
Note: This Question is unanswered, help us to find answer for this one
A mathematical formula that allows researchers to determine the likelihood of obtaining sample outcomes if the null hypothesis were true is known as_____
Answer
Correct Answer:
Test statistic
Note: This Question is unanswered, help us to find answer for this one
When the null hypothesis is retained, we reach significance.
Answer
Correct Answer:
False
Note: This Question is unanswered, help us to find answer for this one
A criterion of judgment upon which a decision is made regarding the value stated in a null hypothesis is known as_____
Answer
Correct Answer:
Significance level
Note: This Question is unanswered, help us to find answer for this one
When the null hypothesis is rejected, we reach significance.
Answer
Correct Answer:
True
Note: This Question is unanswered, help us to find answer for this one
Power is the probability that we will detect an effect if an effect actually exists in a population.
Answer
Correct Answer:
True
Note: This Question is unanswered, help us to find answer for this one
Power is the probability that we will detect an effect if an effect actually exists in a population.
Answer
Correct Answer:
True
Note: This Question is unanswered, help us to find answer for this one
A sample statistic that is used to estimate a population parameter is known as_____
Answer
Correct Answer:
Point estimate
Note: This Question is unanswered, help us to find answer for this one
Parametric tests analyze data on_____ scale.
Answer
Correct Answer:
Ratio
Note: This Question is unanswered, help us to find answer for this one
The p value is compared to the_____to make a decision about a null hypothesis.
Answer
Correct Answer:
Level of significance
Note: This Question is unanswered, help us to find answer for this one
Null hypothesis is a statement about a population parameter that is assumed to be false.
Answer
Correct Answer:
False
Note: This Question is unanswered, help us to find answer for this one
Nonparametric tests analyze data on_____ scale of measurement.
Answer
Correct Answer:
Both a and b
Note: This Question is unanswered, help us to find answer for this one
A source of variation associated with mean differences across the levels of a single factor is known as_____
Answer
Correct Answer:
Main effect
Note: This Question is unanswered, help us to find answer for this one
A criterion of judgment upon which a decision is made regarding the value stated in a null hypothesis is known as_____
Answer
Correct Answer:
Level of significance
Note: This Question is unanswered, help us to find answer for this one
The probability or likelihood that an interval estimate will contain the value of an unknown population parameter is known as_____
Answer
Correct Answer:
Level of confidence
Note: This Question is unanswered, help us to find answer for this one
The interval or range of possible values within which an unknown population parameter is likely to be contained is known as_____
Answer
Correct Answer:
Interval estimate
Note: This Question is unanswered, help us to find answer for this one
Interaction is a source of variation associated with how the effects of one factor are_____, the levels of a second factor.
Answer
Correct Answer:
Both a and b
Note: This Question is unanswered, help us to find answer for this one
Procedures that allow researchers to infer or generalize observations made with samples to the larger population from which they were selected refer to inferential statistics.
Answer
Correct Answer:
True
Note: This Question is unanswered, help us to find answer for this one
Eta squared is a measure (η2) of proportion of _____ used to describe effect size for data analyzed using ANOVA.
Answer
Correct Answer:
Variance
Note: This Question is unanswered, help us to find answer for this one
The types of estimation include_____
Answer
Correct Answer:
Both a and b
Note: This Question is unanswered, help us to find answer for this one
Effect size conventions means the standard rules for identifying_____ effects based on typical findings in behavioral research.
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
Effect size includes_____
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
A mean difference or discrepancy between what was observed in a sample and what was expected to be observed in the population is known as_____
Answer
Correct Answer:
Effect
Note: This Question is unanswered, help us to find answer for this one
A measure of proportion of variance that is used as an estimate of effect size for the chi-square test for independence is known as_____
Answer
Correct Answer:
Cramer’s V
Note: This Question is unanswered, help us to find answer for this one
The upper and lower boundaries of a confidence interval given within a specified level of confidence refer to_____
Answer
Correct Answer:
Confidence limits
Note: This Question is unanswered, help us to find answer for this one
The interval or range of possible values within which an unknown population parameter is likely to be contained is known as_____
Answer
Correct Answer:
Confidence interval
Note: This Question is unanswered, help us to find answer for this one
A measure of effect size in terms of the number of standard deviations that mean scores shifted above or below the population mean stated by the null hypothesis is known as_____
Answer
Correct Answer:
Cohen’s d
Note: This Question is unanswered, help us to find answer for this one
Cohen’s conventions means the standard rules for identifying _____ effects based on typical findings in behavioral research.
Answer
Correct Answer:
All of these
Note: This Question is unanswered, help us to find answer for this one
Coefficient of determination is a measure (R2) of proportion of_____ used to describe effect size for data analyzed using a correlation coefficient or regression.
Answer
Correct Answer:
Variance
Note: This Question is unanswered, help us to find answer for this one
A statistical procedure used to determine whether frequencies observed at the combination of levels of two categorical variables are similar to or different from frequencies expected is known as_____
Answer
Correct Answer:
Chi-square test for independence
Note: This Question is unanswered, help us to find answer for this one
A statistical procedure used to determine whether observed frequencies at each level of one categorical variable are similar to or different from frequencies expected is known as_____
Answer
Correct Answer:
Chi-square goodness-of-fit test
Note: This Question is unanswered, help us to find answer for this one
