Recent questions in Meta-Analysis

Descriptive StatisticsAnswered question

Yaretzi Mcconnell 2022-11-15

This is a basic statistic used in Meta-analysis and is used to measure meaningfulness of an outcome:

Alpha level

Effect size

Power

R-value

Alpha level

Effect size

Power

R-value

Descriptive StatisticsAnswered question

tramolatzqvg 2022-11-15

Explain meta-analysis and how it may be used to identify patterns in criminal justice research. In your explanation, identify and discuss at least four of the eligibility criteria suggested by Lipsey . What is one challenge of meta-analysis? How could meta-analysis strengthen criminal justice programs?

Descriptive StatisticsAnswered question

Kareem Mejia 2022-11-12

1. List the steps involved with meta-analysis

2. Evaluate the steps that are involved with meta-analysis

2. Evaluate the steps that are involved with meta-analysis

Descriptive StatisticsAnswered question

Tessa Peters 2022-10-31

Which of the following best describes meta-analysis?

a. Evidenced-based practice.

b. A treatment versus no treatment group.

c. A tendency for smaller scores to move toward the average.

d. Regressing from unusual to usual. e. A way to combine the results of lots of studies.

a. Evidenced-based practice.

b. A treatment versus no treatment group.

c. A tendency for smaller scores to move toward the average.

d. Regressing from unusual to usual. e. A way to combine the results of lots of studies.

Descriptive StatisticsAnswered question

Rubi Garner 2022-10-30

1. What is meant by meta analysis? Find an article that has conducted a meta analysis. Send me the link to it.

2. Explain the advantage of having conducted a meta analysis in the study you selected.

2. Explain the advantage of having conducted a meta analysis in the study you selected.

Descriptive StatisticsAnswered question

Maribel Mcintyre 2022-10-26

This describes the effect of a single variable as if there were no other variables in the study.

Use one of the following key terms to answer each of the following questions.

KEY TERM BANK (separated by commas):

Univariate, Multivariate, meta-analysis, F-ratio, interaction, main effect

Use one of the following key terms to answer each of the following questions.

KEY TERM BANK (separated by commas):

Univariate, Multivariate, meta-analysis, F-ratio, interaction, main effect

Descriptive StatisticsAnswered question

Aarav Atkins 2022-10-25

Which of the following is a quality criterion for appraising a systematic review?

Question 2 options:

results presented as a meta-analysis

providing details about the search strategy

data synthesis provided in a Forest plot

inclusion of only randomized controlled trials

Question 2 options:

results presented as a meta-analysis

providing details about the search strategy

data synthesis provided in a Forest plot

inclusion of only randomized controlled trials

Descriptive StatisticsAnswered question

Alexander Lewis 2022-10-17

What distinguishes meta-analysis from meta-synthesis?

A) Meta-analysis uses a systematic approach; meta-synthesis does not use a systematic approach.

B) Meta-analysis is used for qualitative studies; meta-synthesis is used for quantitative studies.

C) Meta-analysis uses only published evidence; meta-synthesis uses both published and unpublished evidence.

D) Meta-analysis is used for quantitative studies; meta-synthesis is used for qualitative studies.

A) Meta-analysis uses a systematic approach; meta-synthesis does not use a systematic approach.

B) Meta-analysis is used for qualitative studies; meta-synthesis is used for quantitative studies.

C) Meta-analysis uses only published evidence; meta-synthesis uses both published and unpublished evidence.

D) Meta-analysis is used for quantitative studies; meta-synthesis is used for qualitative studies.

Descriptive StatisticsAnswered question

Sanai Ball 2022-09-30

In social work meta-analysis, statistical analysis is used to learn if a method or type of intervention can be consideblack effective in addressing some problem. In meta-analysis, a research sample is comprised of a group of:

- clients.

- social agencies.

- social programs.

- reports of research that evaluated the intervention.

- clients.

- social agencies.

- social programs.

- reports of research that evaluated the intervention.

Descriptive StatisticsAnswered question

Tabitha Doyle 2022-09-30

Meta-analysis concepts

Complete the following statements with the correct terms:

A graphic that puts all effect sizes on a single plot, showing their confidence intervals, and showing an overall effect size with its confidence interval is known as a ...

A problem in meta-analysis is that many nonsignificant studies go unpublished and are hidden away, where they do not contribute to final decisions about effects. This is known as the ...

Medical practice and advice based on the results of a meta-analysis on multiple studies is called- ...

In meta-analysis, to compare studies that are measublack in different scales, it is best to use the ...

When working with relative risk, or risk ratios, you generally transform the effect size with a ...

Complete the following statements with the correct terms:

A graphic that puts all effect sizes on a single plot, showing their confidence intervals, and showing an overall effect size with its confidence interval is known as a ...

A problem in meta-analysis is that many nonsignificant studies go unpublished and are hidden away, where they do not contribute to final decisions about effects. This is known as the ...

Medical practice and advice based on the results of a meta-analysis on multiple studies is called- ...

In meta-analysis, to compare studies that are measublack in different scales, it is best to use the ...

When working with relative risk, or risk ratios, you generally transform the effect size with a ...

Descriptive StatisticsAnswered question

Domianpv 2022-09-29

A company has 25 applicants to interview, and wants to invite 7 of them on the first day, 6 of them on the second day, 5 of them on the third day, 4 of them on the fourth day and 3 of them on the fifth day of a week. In how many ways can the applicants be scheduled?

Select one:

(257,6,5,4,3)

None

25!

$P(25;7)\times P(19;6)\times P(14;5)\times P(10;4)\times P(7;3)$

$C(25;7)\times C(19;6)\times C(14;5)\times C(10;4)\times C(7;3)$

Select one:

(257,6,5,4,3)

None

25!

$P(25;7)\times P(19;6)\times P(14;5)\times P(10;4)\times P(7;3)$

$C(25;7)\times C(19;6)\times C(14;5)\times C(10;4)\times C(7;3)$

Descriptive StatisticsAnswered question

gebuiteldmz 2022-09-29

I don't quite understand what a meta-analysis is. Help

Descriptive StatisticsAnswered question

braffter92 2022-09-28

Explain why meta-analysis allows researchers to draw stronger conclusions about the principles of psychology

Descriptive StatisticsAnswered question

aphathalo 2022-09-28

Is a meta-analysis quantitative or qualitative?

Descriptive StatisticsAnswered question

Jensen Mclean 2022-09-28

Meta-analysis helps researchers do which of the following:

a. Investigate the effects of minimum wage increases through controlled laboratory experiments

b. Infer the effects of increases in the minimum wage by averaging the results of other studies

c. Generally find elasticity estimates for labor demand to be highly elastic

d. Examine changes in the minimum wage in multiple countries

I think answer is b. according to the literature below:

"Research since 2007, however, has reported conflicting findings. Some studies use “meta-analysis,” averaging across a set of studies to draw conclusions. For example, Doucouliagos and Stanley (2009) report an average elasticity across studies of −0.19, consistent with earlier conclusions, but argue that the true effect is closer to zero; they suggest that the biases of authors and journal editors make it more likely that studies with negative estimates will be published. However, without strong assumptions it is impossible to rule out an alternative interpretation—that peer review and publication lead to more evidence of negative estimates because the true effect is negative. In addition, meta-analyses do not assign more weight to the most compelling evidence. Indeed, they often downweight less precise estimates, even though the lower precision may be attributable to more compelling research strategies that ask more of the data. In short, meta-analysis is no substitute for critical evaluation of alternative studies."

a. Investigate the effects of minimum wage increases through controlled laboratory experiments

b. Infer the effects of increases in the minimum wage by averaging the results of other studies

c. Generally find elasticity estimates for labor demand to be highly elastic

d. Examine changes in the minimum wage in multiple countries

I think answer is b. according to the literature below:

"Research since 2007, however, has reported conflicting findings. Some studies use “meta-analysis,” averaging across a set of studies to draw conclusions. For example, Doucouliagos and Stanley (2009) report an average elasticity across studies of −0.19, consistent with earlier conclusions, but argue that the true effect is closer to zero; they suggest that the biases of authors and journal editors make it more likely that studies with negative estimates will be published. However, without strong assumptions it is impossible to rule out an alternative interpretation—that peer review and publication lead to more evidence of negative estimates because the true effect is negative. In addition, meta-analyses do not assign more weight to the most compelling evidence. Indeed, they often downweight less precise estimates, even though the lower precision may be attributable to more compelling research strategies that ask more of the data. In short, meta-analysis is no substitute for critical evaluation of alternative studies."

Descriptive StatisticsAnswered question

Jazmyn Pugh 2022-09-27

Create an example where meta-analysis would be used in the fitness field and state three considerations to consider in using the meta-analysis approach.

Descriptive StatisticsAnswered question

Medenovgj 2022-09-26

Meta-analysis examine:

a. I don't know

b. Standard deviation

c. Effect sizes

d. Statistical significance

a. I don't know

b. Standard deviation

c. Effect sizes

d. Statistical significance

Descriptive StatisticsAnswered question

memLosycecyjz 2022-09-23

Select the study design that we can place the greatest trust on the results?

1. RCT with low risk of bias.

2. Meta-analysis of Observational studies

3. Meta-analysis of RCT's with high risk of bias.

4. Meta-analysis of RCT's with low risk of bias.

1. RCT with low risk of bias.

2. Meta-analysis of Observational studies

3. Meta-analysis of RCT's with high risk of bias.

4. Meta-analysis of RCT's with low risk of bias.

Descriptive StatisticsAnswered question

ladymint0w 2022-09-04

When can a meta-analysis combine the data from all studies into one hypothesis test?

1. This can be done for any meta-analysis

2. This can only be done when similar methods were used to sample the same population.

3. This can only be done when computing confidence intervals not hypothesis tests.

4. This can be done when similar methods were used to sample different population.

1. This can be done for any meta-analysis

2. This can only be done when similar methods were used to sample the same population.

3. This can only be done when computing confidence intervals not hypothesis tests.

4. This can be done when similar methods were used to sample different population.

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We often hear about meta-analysis problems when we are dealing with statistical data and need to provide information based on certain variables. Depending on what questions you need to address, you must start with the examples that will help you to understand the problems in each particular case. Some of them will deal with equations, while meta analysis statistic will require strategic thinking that will differ from what you might perceive as the meta analysis. The best of both worlds is to examine as much as you can, based on our answers to the Meta challenges that are studied today.