نتایج جستجو برای: sample mean test
تعداد نتایج: 1611506 فیلتر نتایج به سال:
the present study was an attempt to determine the types of motivation and levels of foreign language learning anxiety among efl students studying at azad and state universities in kermanshah and to determine the relationship between these two factors and language proficiency and gender. to this end, the foreign language learning motivation scale, by deci and ryan )1985(, were administered to 12...
abstract the current study set out to address the issue as to whether the implementation of portfolio assessment would give rise to iranian pre-intermediate efl learner autonomy. participants comprised 60 female in pre-intermediate level within the age range of 16-28.they were selected from among 90 language learners based on their scores on language proficiency test -key english test. then, t...
We develop a new statistic for testing the equality of two multivariate mean vectors. A scaled chi-squared distribution is proposed as an approximating null distribution. Because the test statistic is based on componentwise statistics, it has the advantage over Hotelling's T2 test of being applicable to the case where the dimension of an observation exceeds the number of observations. An appeal...
Yuen's two-sample trimmed mean test statistic is one of the most robust methods to apply when variances are heterogeneous. The present study develops formulas for the sample size required for the test. The formulas are applicable for the cases of unequal variances, non-normality and unequal sample sizes. Given the specified alpha and the power (1-beta), the minimum sample size needed by the pro...
this study investigated the impact of explicit instruction of morphemic analysis and synthesis on the vocabulary development of the students. the participants were 90 junior high school students divided into two experimental groups and one control group. morphological awareness techniques (analysis/synthesis) and conventional techniques were used to teach vocabulary in the experimental groups a...
12 سگ سالم (عاری از هرگونه اختلال چشمی) برای انجام مطالعه انتخاب شدند. در ابتدای مطالعه و قبل از شروع تجویز داروی پروپاراکایین هیدروکلراید 5/0% ، تست شیرمر برای هر دو چشم در تمامی سگ ها انجام شد؛ سپس دارو در گروه تیمار در کیسه ی ملتحمه تجویز شد. تست شیرمر در دقایق 5،10،15،20،25،30،35 و40 تکرار شد. آزمون تک نمونه ی kolmogorov-smirnov، برای ارزیابی این که آیا داده های خام به صورت نرمال توزیع شده ...
the purpose of the present study was to see which one of the two instruction-processing instruction (pi) and meaningful output based instruction (mobi) accompanied with prompt and recast- is more effective on efl learners’ writing accuracy. in order to homogenize the participants in term of language proficiency a preliminary english test (pet) was administrated between 74 intermediate students ...
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